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Finding the Fourth Proportional to 485,035.98, 727,304.49 and 260,585.52

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Solution

The fourth proportional to 485,035.98, 727,304.49 and 260,585.52 is: 390,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,035.98 : 727,304.49 = 260,585.52 : x
  2. Step 2: Convert to fraction form
    485,035.98/727,304.49 = 260,585.52/x
  3. Step 3: Cross multiply
    485,035.98x = 727,304.49 × 260,585.52
  4. Step 4: Simplify right side
    485,035.98x = 189,525,018,724.99
  5. Step 5: Solve for x
    x = 189,525,018,724.99/485,035.98
  6. Step 6: Final answer
    x = 390,744.25

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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.