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Finding the Fourth Proportional to 540,103.92, 745,329 and 298,347.52

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Solution

The fourth proportional to 540,103.92, 745,329 and 298,347.52 is: 411,711.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,103.92 : 745,329 = 298,347.52 : x
  2. Step 2: Convert to fraction form
    540,103.92/745,329 = 298,347.52/x
  3. Step 3: Cross multiply
    540,103.92x = 745,329 × 298,347.52
  4. Step 4: Simplify right side
    540,103.92x = 222,367,058,734.08
  5. Step 5: Solve for x
    x = 222,367,058,734.08/540,103.92
  6. Step 6: Final answer
    x = 411,711.62

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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.