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Finding the Fourth Proportional to 492,901.68, 680,153.76 and 363,908.64

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Solution

The fourth proportional to 492,901.68, 680,153.76 and 363,908.64 is: 502,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,901.68 : 680,153.76 = 363,908.64 : x
  2. Step 2: Convert to fraction form
    492,901.68/680,153.76 = 363,908.64/x
  3. Step 3: Cross multiply
    492,901.68x = 680,153.76 × 363,908.64
  4. Step 4: Simplify right side
    492,901.68x = 247,513,829,792.49
  5. Step 5: Solve for x
    x = 247,513,829,792.49/492,901.68
  6. Step 6: Final answer
    x = 502,156.60

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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.