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Finding the Fourth Proportional to 485,061.44, 727,348.16 and 282,722.56

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Solution

The fourth proportional to 485,061.44, 727,348.16 and 282,722.56 is: 423,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,061.44 : 727,348.16 = 282,722.56 : x
  2. Step 2: Convert to fraction form
    485,061.44/727,348.16 = 282,722.56/x
  3. Step 3: Cross multiply
    485,061.44x = 727,348.16 × 282,722.56
  4. Step 4: Simplify right side
    485,061.44x = 205,637,733,806.49
  5. Step 5: Solve for x
    x = 205,637,733,806.49/485,061.44
  6. Step 6: Final answer
    x = 423,941.62

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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.