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Finding the Fourth Proportional to 704,600.43, 972,600.75 and 418,120.44

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Solution

The fourth proportional to 704,600.43, 972,600.75 and 418,120.44 is: 577,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,600.43 : 972,600.75 = 418,120.44 : x
  2. Step 2: Convert to fraction form
    704,600.43/972,600.75 = 418,120.44/x
  3. Step 3: Cross multiply
    704,600.43x = 972,600.75 × 418,120.44
  4. Step 4: Simplify right side
    704,600.43x = 406,664,253,534.33
  5. Step 5: Solve for x
    x = 406,664,253,534.33/704,600.43
  6. Step 6: Final answer
    x = 577,155.84

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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.