Home / 870,832.30-1,306,248.45-658,255.90

Finding the Fourth Proportional to 870,832.30, 1,306,248.45 and 658,255.90

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Solution

The fourth proportional to 870,832.30, 1,306,248.45 and 658,255.90 is: 987,383.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,832.30 : 1,306,248.45 = 658,255.90 : x
  2. Step 2: Convert to fraction form
    870,832.30/1,306,248.45 = 658,255.90/x
  3. Step 3: Cross multiply
    870,832.30x = 1,306,248.45 × 658,255.90
  4. Step 4: Simplify right side
    870,832.30x = 859,845,749,078.36
  5. Step 5: Solve for x
    x = 859,845,749,078.36/870,832.30
  6. Step 6: Final answer
    x = 987,383.85

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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.