Home / 827,880.08-1,240,781.26-354,008.20

Finding the Fourth Proportional to 827,880.08, 1,240,781.26 and 354,008.20

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Solution

The fourth proportional to 827,880.08, 1,240,781.26 and 354,008.20 is: 530,568.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,880.08 : 1,240,781.26 = 354,008.20 : x
  2. Step 2: Convert to fraction form
    827,880.08/1,240,781.26 = 354,008.20/x
  3. Step 3: Cross multiply
    827,880.08x = 1,240,781.26 × 354,008.20
  4. Step 4: Simplify right side
    827,880.08x = 439,246,740,446.33
  5. Step 5: Solve for x
    x = 439,246,740,446.33/827,880.08
  6. Step 6: Final answer
    x = 530,568.08

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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.