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Finding the Fourth Proportional to 542,278.88, 748,350.36 and 300,566.76

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Solution

The fourth proportional to 542,278.88, 748,350.36 and 300,566.76 is: 414,785.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,278.88 : 748,350.36 = 300,566.76 : x
  2. Step 2: Convert to fraction form
    542,278.88/748,350.36 = 300,566.76/x
  3. Step 3: Cross multiply
    542,278.88x = 748,350.36 × 300,566.76
  4. Step 4: Simplify right side
    542,278.88x = 224,929,243,050.03
  5. Step 5: Solve for x
    x = 224,929,243,050.03/542,278.88
  6. Step 6: Final answer
    x = 414,785.18

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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.