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Finding the Fourth Proportional to 542,483.02, 748,629.42 and 313,049.86

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Solution

The fourth proportional to 542,483.02, 748,629.42 and 313,049.86 is: 432,010.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,483.02 : 748,629.42 = 313,049.86 : x
  2. Step 2: Convert to fraction form
    542,483.02/748,629.42 = 313,049.86/x
  3. Step 3: Cross multiply
    542,483.02x = 748,629.42 × 313,049.86
  4. Step 4: Simplify right side
    542,483.02x = 234,358,335,122.88
  5. Step 5: Solve for x
    x = 234,358,335,122.88/542,483.02
  6. Step 6: Final answer
    x = 432,010.45

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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.