Home / 711,648.13-981,977.43-425,107.39

Finding the Fourth Proportional to 711,648.13, 981,977.43 and 425,107.39

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Solution

The fourth proportional to 711,648.13, 981,977.43 and 425,107.39 is: 586,590.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,648.13 : 981,977.43 = 425,107.39 : x
  2. Step 2: Convert to fraction form
    711,648.13/981,977.43 = 425,107.39/x
  3. Step 3: Cross multiply
    711,648.13x = 981,977.43 × 425,107.39
  4. Step 4: Simplify right side
    711,648.13x = 417,445,861,243.44
  5. Step 5: Solve for x
    x = 417,445,861,243.44/711,648.13
  6. Step 6: Final answer
    x = 586,590.26

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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.