Home / 688,777.92-1,031,242.32-372,100.32

Finding the Fourth Proportional to 688,777.92, 1,031,242.32 and 372,100.32

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Solution

The fourth proportional to 688,777.92, 1,031,242.32 and 372,100.32 is: 557,110.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,777.92 : 1,031,242.32 = 372,100.32 : x
  2. Step 2: Convert to fraction form
    688,777.92/1,031,242.32 = 372,100.32/x
  3. Step 3: Cross multiply
    688,777.92x = 1,031,242.32 × 372,100.32
  4. Step 4: Simplify right side
    688,777.92x = 383,725,597,269.54
  5. Step 5: Solve for x
    x = 383,725,597,269.54/688,777.92
  6. Step 6: Final answer
    x = 557,110.77

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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.