Home / 482,419.40-723,629.10-438,132.65

Finding the Fourth Proportional to 482,419.40, 723,629.10 and 438,132.65

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Solution

The fourth proportional to 482,419.40, 723,629.10 and 438,132.65 is: 657,198.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,419.40 : 723,629.10 = 438,132.65 : x
  2. Step 2: Convert to fraction form
    482,419.40/723,629.10 = 438,132.65/x
  3. Step 3: Cross multiply
    482,419.40x = 723,629.10 × 438,132.65
  4. Step 4: Simplify right side
    482,419.40x = 317,045,535,200.12
  5. Step 5: Solve for x
    x = 317,045,535,200.12/482,419.40
  6. Step 6: Final answer
    x = 657,198.98

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Similar ratio
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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.