Home / 498,743.10-748,114.65-288,791.10

Finding the Fourth Proportional to 498,743.10, 748,114.65 and 288,791.10

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Solution

The fourth proportional to 498,743.10, 748,114.65 and 288,791.10 is: 433,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,743.10 : 748,114.65 = 288,791.10 : x
  2. Step 2: Convert to fraction form
    498,743.10/748,114.65 = 288,791.10/x
  3. Step 3: Cross multiply
    498,743.10x = 748,114.65 × 288,791.10
  4. Step 4: Simplify right side
    498,743.10x = 216,048,852,699.62
  5. Step 5: Solve for x
    x = 216,048,852,699.62/498,743.10
  6. Step 6: Final answer
    x = 433,186.65

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Similar ratio
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1.5x scale

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.