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Finding the Fourth Proportional to 542,342.36, 748,353.87 and 300,624.86

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Solution

The fourth proportional to 542,342.36, 748,353.87 and 300,624.86 is: 414,818.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,342.36 : 748,353.87 = 300,624.86 : x
  2. Step 2: Convert to fraction form
    542,342.36/748,353.87 = 300,624.86/x
  3. Step 3: Cross multiply
    542,342.36x = 748,353.87 × 300,624.86
  4. Step 4: Simplify right side
    542,342.36x = 224,973,773,657.44
  5. Step 5: Solve for x
    x = 224,973,773,657.44/542,342.36
  6. Step 6: Final answer
    x = 414,818.74

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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.