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Finding the Fourth Proportional to 542,288.52, 748,402.94 and 300,646.89

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Solution

The fourth proportional to 542,288.52, 748,402.94 and 300,646.89 is: 414,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,288.52 : 748,402.94 = 300,646.89 : x
  2. Step 2: Convert to fraction form
    542,288.52/748,402.94 = 300,646.89/x
  3. Step 3: Cross multiply
    542,288.52x = 748,402.94 × 300,646.89
  4. Step 4: Simplify right side
    542,288.52x = 225,005,017,129.47
  5. Step 5: Solve for x
    x = 225,005,017,129.47/542,288.52
  6. Step 6: Final answer
    x = 414,917.54

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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.