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Finding the Fourth Proportional to 539,179.20, 744,076.80 and 297,475.20

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Solution

The fourth proportional to 539,179.20, 744,076.80 and 297,475.20 is: 410,521.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,179.20 : 744,076.80 = 297,475.20 : x
  2. Step 2: Convert to fraction form
    539,179.20/744,076.80 = 297,475.20/x
  3. Step 3: Cross multiply
    539,179.20x = 744,076.80 × 297,475.20
  4. Step 4: Simplify right side
    539,179.20x = 221,344,394,895.36
  5. Step 5: Solve for x
    x = 221,344,394,895.36/539,179.20
  6. Step 6: Final answer
    x = 410,521.02

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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.