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Finding the Fourth Proportional to 542,542.02, 748,687.77 and 300,827.22

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Solution

The fourth proportional to 542,542.02, 748,687.77 and 300,827.22 is: 415,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,542.02 : 748,687.77 = 300,827.22 : x
  2. Step 2: Convert to fraction form
    542,542.02/748,687.77 = 300,827.22/x
  3. Step 3: Cross multiply
    542,542.02x = 748,687.77 × 300,827.22
  4. Step 4: Simplify right side
    542,542.02x = 225,225,660,497.10
  5. Step 5: Solve for x
    x = 225,225,660,497.10/542,542.02
  6. Step 6: Final answer
    x = 415,130.35

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1.5x scale

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.