Home / 870,250.73-1,200,966.69-488,305.76

Finding the Fourth Proportional to 870,250.73, 1,200,966.69 and 488,305.76

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Solution

The fourth proportional to 870,250.73, 1,200,966.69 and 488,305.76 is: 673,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,250.73 : 1,200,966.69 = 488,305.76 : x
  2. Step 2: Convert to fraction form
    870,250.73/1,200,966.69 = 488,305.76/x
  3. Step 3: Cross multiply
    870,250.73x = 1,200,966.69 × 488,305.76
  4. Step 4: Simplify right side
    870,250.73x = 586,438,946,290.30
  5. Step 5: Solve for x
    x = 586,438,946,290.30/870,250.73
  6. Step 6: Final answer
    x = 673,873.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.