Home / 1,188,472.20-1,781,153.10-477,918.60

Finding the Fourth Proportional to 1,188,472.20, 1,781,153.10 and 477,918.60

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Solution

The fourth proportional to 1,188,472.20, 1,781,153.10 and 477,918.60 is: 716,252.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,472.20 : 1,781,153.10 = 477,918.60 : x
  2. Step 2: Convert to fraction form
    1,188,472.20/1,781,153.10 = 477,918.60/x
  3. Step 3: Cross multiply
    1,188,472.20x = 1,781,153.10 × 477,918.60
  4. Step 4: Simplify right side
    1,188,472.20x = 851,246,195,937.66
  5. Step 5: Solve for x
    x = 851,246,195,937.66/1,188,472.20
  6. Step 6: Final answer
    x = 716,252.51

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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.