Home / 730,376.10-1,095,564.15-431,000.10

Finding the Fourth Proportional to 730,376.10, 1,095,564.15 and 431,000.10

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Solution

The fourth proportional to 730,376.10, 1,095,564.15 and 431,000.10 is: 646,500.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,376.10 : 1,095,564.15 = 431,000.10 : x
  2. Step 2: Convert to fraction form
    730,376.10/1,095,564.15 = 431,000.10/x
  3. Step 3: Cross multiply
    730,376.10x = 1,095,564.15 × 431,000.10
  4. Step 4: Simplify right side
    730,376.10x = 472,188,258,206.42
  5. Step 5: Solve for x
    x = 472,188,258,206.42/730,376.10
  6. Step 6: Final answer
    x = 646,500.15

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Half scale
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Double scale
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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.