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Finding the Fourth Proportional to 542,704.84, 748,957.68 and 300,973.01

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Solution

The fourth proportional to 542,704.84, 748,957.68 and 300,973.01 is: 415,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,704.84 : 748,957.68 = 300,973.01 : x
  2. Step 2: Convert to fraction form
    542,704.84/748,957.68 = 300,973.01/x
  3. Step 3: Cross multiply
    542,704.84x = 748,957.68 × 300,973.01
  4. Step 4: Simplify right side
    542,704.84x = 225,416,045,439.82
  5. Step 5: Solve for x
    x = 225,416,045,439.82/542,704.84
  6. Step 6: Final answer
    x = 415,356.62

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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.