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Finding the Fourth Proportional to 487,680.63, 730,856.74 and 274,550.19

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Solution

The fourth proportional to 487,680.63, 730,856.74 and 274,550.19 is: 411,451.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,680.63 : 730,856.74 = 274,550.19 : x
  2. Step 2: Convert to fraction form
    487,680.63/730,856.74 = 274,550.19/x
  3. Step 3: Cross multiply
    487,680.63x = 730,856.74 × 274,550.19
  4. Step 4: Simplify right side
    487,680.63x = 200,656,852,489.12
  5. Step 5: Solve for x
    x = 200,656,852,489.12/487,680.63
  6. Step 6: Final answer
    x = 411,451.35

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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.