Home / 918,105.90-1,377,158.85-909,248.55

Finding the Fourth Proportional to 918,105.90, 1,377,158.85 and 909,248.55

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Solution

The fourth proportional to 918,105.90, 1,377,158.85 and 909,248.55 is: 1,363,872.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,105.90 : 1,377,158.85 = 909,248.55 : x
  2. Step 2: Convert to fraction form
    918,105.90/1,377,158.85 = 909,248.55/x
  3. Step 3: Cross multiply
    918,105.90x = 1,377,158.85 × 909,248.55
  4. Step 4: Simplify right side
    918,105.90x = 1,252,179,687,482.17
  5. Step 5: Solve for x
    x = 1,252,179,687,482.17/918,105.90
  6. Step 6: Final answer
    x = 1,363,872.83

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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.