Home / 724,154.10-1,086,231.15-303,386.10

Finding the Fourth Proportional to 724,154.10, 1,086,231.15 and 303,386.10

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Solution

The fourth proportional to 724,154.10, 1,086,231.15 and 303,386.10 is: 455,079.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,154.10 : 1,086,231.15 = 303,386.10 : x
  2. Step 2: Convert to fraction form
    724,154.10/1,086,231.15 = 303,386.10/x
  3. Step 3: Cross multiply
    724,154.10x = 1,086,231.15 × 303,386.10
  4. Step 4: Simplify right side
    724,154.10x = 329,547,432,297.02
  5. Step 5: Solve for x
    x = 329,547,432,297.02/724,154.10
  6. Step 6: Final answer
    x = 455,079.15

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Half scale
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Double scale
Find fourth proportional to 724,155.10, 1,086,232.65 and 303,387.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.