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Finding the Fourth Proportional to 542,488.03, 748,632.15 and 300,764.41

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Solution

The fourth proportional to 542,488.03, 748,632.15 and 300,764.41 is: 415,054.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,488.03 : 748,632.15 = 300,764.41 : x
  2. Step 2: Convert to fraction form
    542,488.03/748,632.15 = 300,764.41/x
  3. Step 3: Cross multiply
    542,488.03x = 748,632.15 × 300,764.41
  4. Step 4: Simplify right side
    542,488.03x = 225,161,906,901.78
  5. Step 5: Solve for x
    x = 225,161,906,901.78/542,488.03
  6. Step 6: Final answer
    x = 415,054.15

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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.