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Finding the Fourth Proportional to 542,463.60, 748,617.48 and 300,768.66

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Solution

The fourth proportional to 542,463.60, 748,617.48 and 300,768.66 is: 415,070.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,463.60 : 748,617.48 = 300,768.66 : x
  2. Step 2: Convert to fraction form
    542,463.60/748,617.48 = 300,768.66/x
  3. Step 3: Cross multiply
    542,463.60x = 748,617.48 × 300,768.66
  4. Step 4: Simplify right side
    542,463.60x = 225,160,676,312.18
  5. Step 5: Solve for x
    x = 225,160,676,312.18/542,463.60
  6. Step 6: Final answer
    x = 415,070.57

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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.