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Finding the Fourth Proportional to 542,185.79, 748,218.33 and 300,472.47

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Solution

The fourth proportional to 542,185.79, 748,218.33 and 300,472.47 is: 414,653.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,185.79 : 748,218.33 = 300,472.47 : x
  2. Step 2: Convert to fraction form
    542,185.79/748,218.33 = 300,472.47/x
  3. Step 3: Cross multiply
    542,185.79x = 748,218.33 × 300,472.47
  4. Step 4: Simplify right side
    542,185.79x = 224,819,009,714.38
  5. Step 5: Solve for x
    x = 224,819,009,714.38/542,185.79
  6. Step 6: Final answer
    x = 414,653.09

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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.