Home / 711,316.92-981,618.03-389,026.02

Finding the Fourth Proportional to 711,316.92, 981,618.03 and 389,026.02

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Solution

The fourth proportional to 711,316.92, 981,618.03 and 389,026.02 is: 536,856.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,316.92 : 981,618.03 = 389,026.02 : x
  2. Step 2: Convert to fraction form
    711,316.92/981,618.03 = 389,026.02/x
  3. Step 3: Cross multiply
    711,316.92x = 981,618.03 × 389,026.02
  4. Step 4: Simplify right side
    711,316.92x = 381,874,955,371.14
  5. Step 5: Solve for x
    x = 381,874,955,371.14/711,316.92
  6. Step 6: Final answer
    x = 536,856.28

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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.