Home / 1,123,387.20-1,685,080.80-493,531.20

Finding the Fourth Proportional to 1,123,387.20, 1,685,080.80 and 493,531.20

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Solution

The fourth proportional to 1,123,387.20, 1,685,080.80 and 493,531.20 is: 740,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,387.20 : 1,685,080.80 = 493,531.20 : x
  2. Step 2: Convert to fraction form
    1,123,387.20/1,685,080.80 = 493,531.20/x
  3. Step 3: Cross multiply
    1,123,387.20x = 1,685,080.80 × 493,531.20
  4. Step 4: Simplify right side
    1,123,387.20x = 831,639,949,320.96
  5. Step 5: Solve for x
    x = 831,639,949,320.96/1,123,387.20
  6. Step 6: Final answer
    x = 740,296.80

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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.