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Finding the Fourth Proportional to 542,231.69, 748,279.80 and 300,529.86

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Solution

The fourth proportional to 542,231.69, 748,279.80 and 300,529.86 is: 414,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,231.69 : 748,279.80 = 300,529.86 : x
  2. Step 2: Convert to fraction form
    542,231.69/748,279.80 = 300,529.86/x
  3. Step 3: Cross multiply
    542,231.69x = 748,279.80 × 300,529.86
  4. Step 4: Simplify right side
    542,231.69x = 224,880,422,967.53
  5. Step 5: Solve for x
    x = 224,880,422,967.53/542,231.69
  6. Step 6: Final answer
    x = 414,731.25

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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.