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Finding the Fourth Proportional to 539,041.20, 807,006.60 and 329,089.20

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Solution

The fourth proportional to 539,041.20, 807,006.60 and 329,089.20 is: 492,684.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,041.20 : 807,006.60 = 329,089.20 : x
  2. Step 2: Convert to fraction form
    539,041.20/807,006.60 = 329,089.20/x
  3. Step 3: Cross multiply
    539,041.20x = 807,006.60 × 329,089.20
  4. Step 4: Simplify right side
    539,041.20x = 265,577,156,388.72
  5. Step 5: Solve for x
    x = 265,577,156,388.72/539,041.20
  6. Step 6: Final answer
    x = 492,684.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.