Home / 918,110.20-1,377,165.30-855,124.60

Finding the Fourth Proportional to 918,110.20, 1,377,165.30 and 855,124.60

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Solution

The fourth proportional to 918,110.20, 1,377,165.30 and 855,124.60 is: 1,282,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,110.20 : 1,377,165.30 = 855,124.60 : x
  2. Step 2: Convert to fraction form
    918,110.20/1,377,165.30 = 855,124.60/x
  3. Step 3: Cross multiply
    918,110.20x = 1,377,165.30 × 855,124.60
  4. Step 4: Simplify right side
    918,110.20x = 1,177,647,926,296.38
  5. Step 5: Solve for x
    x = 1,177,647,926,296.38/918,110.20
  6. Step 6: Final answer
    x = 1,282,686.90

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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.