Home / 918,006.70-1,377,010.05-911,785.90

Finding the Fourth Proportional to 918,006.70, 1,377,010.05 and 911,785.90

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Solution

The fourth proportional to 918,006.70, 1,377,010.05 and 911,785.90 is: 1,367,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,006.70 : 1,377,010.05 = 911,785.90 : x
  2. Step 2: Convert to fraction form
    918,006.70/1,377,010.05 = 911,785.90/x
  3. Step 3: Cross multiply
    918,006.70x = 1,377,010.05 × 911,785.90
  4. Step 4: Simplify right side
    918,006.70x = 1,255,538,347,748.30
  5. Step 5: Solve for x
    x = 1,255,538,347,748.30/918,006.70
  6. Step 6: Final answer
    x = 1,367,678.85

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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.