Home / 1,100,523.30-1,650,784.95-781,658.70

Finding the Fourth Proportional to 1,100,523.30, 1,650,784.95 and 781,658.70

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Solution

The fourth proportional to 1,100,523.30, 1,650,784.95 and 781,658.70 is: 1,172,488.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,523.30 : 1,650,784.95 = 781,658.70 : x
  2. Step 2: Convert to fraction form
    1,100,523.30/1,650,784.95 = 781,658.70/x
  3. Step 3: Cross multiply
    1,100,523.30x = 1,650,784.95 × 781,658.70
  4. Step 4: Simplify right side
    1,100,523.30x = 1,290,350,417,996.57
  5. Step 5: Solve for x
    x = 1,290,350,417,996.57/1,100,523.30
  6. Step 6: Final answer
    x = 1,172,488.05

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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.