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Finding the Fourth Proportional to 866,752.65, 1,300,306.32 and 298,059.93

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Solution

The fourth proportional to 866,752.65, 1,300,306.32 and 298,059.93 is: 447,150.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,752.65 : 1,300,306.32 = 298,059.93 : x
  2. Step 2: Convert to fraction form
    866,752.65/1,300,306.32 = 298,059.93/x
  3. Step 3: Cross multiply
    866,752.65x = 1,300,306.32 × 298,059.93
  4. Step 4: Simplify right side
    866,752.65x = 387,569,210,717.76
  5. Step 5: Solve for x
    x = 387,569,210,717.76/866,752.65
  6. Step 6: Final answer
    x = 447,150.88

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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.