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Finding the Fourth Proportional to 711,650.26, 981,980.36 and 425,109.52

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Solution

The fourth proportional to 711,650.26, 981,980.36 and 425,109.52 is: 586,593.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,650.26 : 981,980.36 = 425,109.52 : x
  2. Step 2: Convert to fraction form
    711,650.26/981,980.36 = 425,109.52/x
  3. Step 3: Cross multiply
    711,650.26x = 981,980.36 × 425,109.52
  4. Step 4: Simplify right side
    711,650.26x = 417,449,195,641.90
  5. Step 5: Solve for x
    x = 417,449,195,641.90/711,650.26
  6. Step 6: Final answer
    x = 586,593.19

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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.