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Finding the Fourth Proportional to 508,720.30, 763,426.05 and 284,080.30

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Solution

The fourth proportional to 508,720.30, 763,426.05 and 284,080.30 is: 426,313.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,720.30 : 763,426.05 = 284,080.30 : x
  2. Step 2: Convert to fraction form
    508,720.30/763,426.05 = 284,080.30/x
  3. Step 3: Cross multiply
    508,720.30x = 763,426.05 × 284,080.30
  4. Step 4: Simplify right side
    508,720.30x = 216,874,301,311.82
  5. Step 5: Solve for x
    x = 216,874,301,311.82/508,720.30
  6. Step 6: Final answer
    x = 426,313.44

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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.