Home / 497,760.40-746,640.60-142,742.80

Finding the Fourth Proportional to 497,760.40, 746,640.60 and 142,742.80

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Solution

The fourth proportional to 497,760.40, 746,640.60 and 142,742.80 is: 214,114.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,760.40 : 746,640.60 = 142,742.80 : x
  2. Step 2: Convert to fraction form
    497,760.40/746,640.60 = 142,742.80/x
  3. Step 3: Cross multiply
    497,760.40x = 746,640.60 × 142,742.80
  4. Step 4: Simplify right side
    497,760.40x = 106,577,569,837.68
  5. Step 5: Solve for x
    x = 106,577,569,837.68/497,760.40
  6. Step 6: Final answer
    x = 214,114.20

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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.