Home / 866,957.11-1,300,113.08-298,178.55

Finding the Fourth Proportional to 866,957.11, 1,300,113.08 and 298,178.55

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Solution

The fourth proportional to 866,957.11, 1,300,113.08 and 298,178.55 is: 447,156.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,957.11 : 1,300,113.08 = 298,178.55 : x
  2. Step 2: Convert to fraction form
    866,957.11/1,300,113.08 = 298,178.55/x
  3. Step 3: Cross multiply
    866,957.11x = 1,300,113.08 × 298,178.55
  4. Step 4: Simplify right side
    866,957.11x = 387,665,832,657.71
  5. Step 5: Solve for x
    x = 387,665,832,657.71/866,957.11
  6. Step 6: Final answer
    x = 447,156.88

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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.