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Finding the Fourth Proportional to 324,382.52, 485,895.71 and 260,859.69

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Solution

The fourth proportional to 324,382.52, 485,895.71 and 260,859.69 is: 390,744.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,382.52 : 485,895.71 = 260,859.69 : x
  2. Step 2: Convert to fraction form
    324,382.52/485,895.71 = 260,859.69/x
  3. Step 3: Cross multiply
    324,382.52x = 485,895.71 × 260,859.69
  4. Step 4: Simplify right side
    324,382.52x = 126,750,604,935.08
  5. Step 5: Solve for x
    x = 126,750,604,935.08/324,382.52
  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.