Home / 711,402.08-981,766.32-409,693.28

Finding the Fourth Proportional to 711,402.08, 981,766.32 and 409,693.28

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Solution

The fourth proportional to 711,402.08, 981,766.32 and 409,693.28 is: 565,394.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,402.08 : 981,766.32 = 409,693.28 : x
  2. Step 2: Convert to fraction form
    711,402.08/981,766.32 = 409,693.28/x
  3. Step 3: Cross multiply
    711,402.08x = 981,766.32 × 409,693.28
  4. Step 4: Simplify right side
    711,402.08x = 402,223,063,834.33
  5. Step 5: Solve for x
    x = 402,223,063,834.33/711,402.08
  6. Step 6: Final answer
    x = 565,394.84

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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.