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Finding the Fourth Proportional to 510,400.80, 704,346.18 and 284,046.30

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Solution

The fourth proportional to 510,400.80, 704,346.18 and 284,046.30 is: 391,980.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,400.80 : 704,346.18 = 284,046.30 : x
  2. Step 2: Convert to fraction form
    510,400.80/704,346.18 = 284,046.30/x
  3. Step 3: Cross multiply
    510,400.80x = 704,346.18 × 284,046.30
  4. Step 4: Simplify right side
    510,400.80x = 200,066,926,348.13
  5. Step 5: Solve for x
    x = 200,066,926,348.13/510,400.80
  6. Step 6: Final answer
    x = 391,980.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.