Home / 542,320.02-748,421.10-327,418.38

Finding the Fourth Proportional to 542,320.02, 748,421.10 and 327,418.38

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Solution

The fourth proportional to 542,320.02, 748,421.10 and 327,418.38 is: 451,849.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,320.02 : 748,421.10 = 327,418.38 : x
  2. Step 2: Convert to fraction form
    542,320.02/748,421.10 = 327,418.38/x
  3. Step 3: Cross multiply
    542,320.02x = 748,421.10 × 327,418.38
  4. Step 4: Simplify right side
    542,320.02x = 245,046,824,119.82
  5. Step 5: Solve for x
    x = 245,046,824,119.82/542,320.02
  6. Step 6: Final answer
    x = 451,849.12

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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.