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Finding the Fourth Proportional to 542,643.66, 748,799.28 and 300,925.62

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Solution

The fourth proportional to 542,643.66, 748,799.28 and 300,925.62 is: 415,250.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,643.66 : 748,799.28 = 300,925.62 : x
  2. Step 2: Convert to fraction form
    542,643.66/748,799.28 = 300,925.62/x
  3. Step 3: Cross multiply
    542,643.66x = 748,799.28 × 300,925.62
  4. Step 4: Simplify right side
    542,643.66x = 225,332,887,589.55
  5. Step 5: Solve for x
    x = 225,332,887,589.55/542,643.66
  6. Step 6: Final answer
    x = 415,250.20

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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.