Home / 870,364.92-1,201,125.42-488,422.20

Finding the Fourth Proportional to 870,364.92, 1,201,125.42 and 488,422.20

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Solution

The fourth proportional to 870,364.92, 1,201,125.42 and 488,422.20 is: 674,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,364.92 : 1,201,125.42 = 488,422.20 : x
  2. Step 2: Convert to fraction form
    870,364.92/1,201,125.42 = 488,422.20/x
  3. Step 3: Cross multiply
    870,364.92x = 1,201,125.42 × 488,422.20
  4. Step 4: Simplify right side
    870,364.92x = 586,656,320,112.32
  5. Step 5: Solve for x
    x = 586,656,320,112.32/870,364.92
  6. Step 6: Final answer
    x = 674,034.89

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Double scale
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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.