Home / 870,335.20-1,305,502.80-551,470.60

Finding the Fourth Proportional to 870,335.20, 1,305,502.80 and 551,470.60

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Solution

The fourth proportional to 870,335.20, 1,305,502.80 and 551,470.60 is: 827,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,335.20 : 1,305,502.80 = 551,470.60 : x
  2. Step 2: Convert to fraction form
    870,335.20/1,305,502.80 = 551,470.60/x
  3. Step 3: Cross multiply
    870,335.20x = 1,305,502.80 × 551,470.60
  4. Step 4: Simplify right side
    870,335.20x = 719,946,412,417.68
  5. Step 5: Solve for x
    x = 719,946,412,417.68/870,335.20
  6. Step 6: Final answer
    x = 827,205.90

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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.