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Finding the Fourth Proportional to 542,121.63, 748,151.61 and 300,403.59

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Solution

The fourth proportional to 542,121.63, 748,151.61 and 300,403.59 is: 414,570.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,121.63 : 748,151.61 = 300,403.59 : x
  2. Step 2: Convert to fraction form
    542,121.63/748,151.61 = 300,403.59/x
  3. Step 3: Cross multiply
    542,121.63x = 748,151.61 × 300,403.59
  4. Step 4: Simplify right side
    542,121.63x = 224,747,429,508.28
  5. Step 5: Solve for x
    x = 224,747,429,508.28/542,121.63
  6. Step 6: Final answer
    x = 414,570.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.