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Finding the Fourth Proportional to 542,190.48, 748,188.84 and 300,458.92

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Solution

The fourth proportional to 542,190.48, 748,188.84 and 300,458.92 is: 414,614.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,190.48 : 748,188.84 = 300,458.92 : x
  2. Step 2: Convert to fraction form
    542,190.48/748,188.84 = 300,458.92/x
  3. Step 3: Cross multiply
    542,190.48x = 748,188.84 × 300,458.92
  4. Step 4: Simplify right side
    542,190.48x = 224,800,010,822.45
  5. Step 5: Solve for x
    x = 224,800,010,822.45/542,190.48
  6. Step 6: Final answer
    x = 414,614.46

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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.