Home / 870,275.43-1,305,380.34-239,172.84

Finding the Fourth Proportional to 870,275.43, 1,305,380.34 and 239,172.84

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Solution

The fourth proportional to 870,275.43, 1,305,380.34 and 239,172.84 is: 358,750.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,275.43 : 1,305,380.34 = 239,172.84 : x
  2. Step 2: Convert to fraction form
    870,275.43/1,305,380.34 = 239,172.84/x
  3. Step 3: Cross multiply
    870,275.43x = 1,305,380.34 × 239,172.84
  4. Step 4: Simplify right side
    870,275.43x = 312,211,523,197.97
  5. Step 5: Solve for x
    x = 312,211,523,197.97/870,275.43
  6. Step 6: Final answer
    x = 358,750.24

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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.