Home / 717,761.30-1,076,123.55-402,314.90

Finding the Fourth Proportional to 717,761.30, 1,076,123.55 and 402,314.90

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Solution

The fourth proportional to 717,761.30, 1,076,123.55 and 402,314.90 is: 603,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,761.30 : 1,076,123.55 = 402,314.90 : x
  2. Step 2: Convert to fraction form
    717,761.30/1,076,123.55 = 402,314.90/x
  3. Step 3: Cross multiply
    717,761.30x = 1,076,123.55 × 402,314.90
  4. Step 4: Simplify right side
    717,761.30x = 432,940,538,405.90
  5. Step 5: Solve for x
    x = 432,940,538,405.90/717,761.30
  6. Step 6: Final answer
    x = 603,181.78

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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.