Home / 870,913.62-1,306,376.91-239,862.06

Finding the Fourth Proportional to 870,913.62, 1,306,376.91 and 239,862.06

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Solution

The fourth proportional to 870,913.62, 1,306,376.91 and 239,862.06 is: 359,794.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,913.62 : 1,306,376.91 = 239,862.06 : x
  2. Step 2: Convert to fraction form
    870,913.62/1,306,376.91 = 239,862.06/x
  3. Step 3: Cross multiply
    870,913.62x = 1,306,376.91 × 239,862.06
  4. Step 4: Simplify right side
    870,913.62x = 313,350,256,769.04
  5. Step 5: Solve for x
    x = 313,350,256,769.04/870,913.62
  6. Step 6: Final answer
    x = 359,794.87

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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.