Home / 870,711.42-1,306,074.43-239,659.86

Finding the Fourth Proportional to 870,711.42, 1,306,074.43 and 239,659.86

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Solution

The fourth proportional to 870,711.42, 1,306,074.43 and 239,659.86 is: 359,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,711.42 : 1,306,074.43 = 239,659.86 : x
  2. Step 2: Convert to fraction form
    870,711.42/1,306,074.43 = 239,659.86/x
  3. Step 3: Cross multiply
    870,711.42x = 1,306,074.43 × 239,659.86
  4. Step 4: Simplify right side
    870,711.42x = 313,013,618,892.65
  5. Step 5: Solve for x
    x = 313,013,618,892.65/870,711.42
  6. Step 6: Final answer
    x = 359,491.80

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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.