Home / 688,778.92-1,031,243.82-372,101.32

Finding the Fourth Proportional to 688,778.92, 1,031,243.82 and 372,101.32

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Solution

The fourth proportional to 688,778.92, 1,031,243.82 and 372,101.32 is: 557,112.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,778.92 : 1,031,243.82 = 372,101.32 : x
  2. Step 2: Convert to fraction form
    688,778.92/1,031,243.82 = 372,101.32/x
  3. Step 3: Cross multiply
    688,778.92x = 1,031,243.82 × 372,101.32
  4. Step 4: Simplify right side
    688,778.92x = 383,727,186,663.84
  5. Step 5: Solve for x
    x = 383,727,186,663.84/688,778.92
  6. Step 6: Final answer
    x = 557,112.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.