Home / 887,100.30-1,330,650.45-326,061.90

Finding the Fourth Proportional to 887,100.30, 1,330,650.45 and 326,061.90

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Solution

The fourth proportional to 887,100.30, 1,330,650.45 and 326,061.90 is: 489,092.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,100.30 : 1,330,650.45 = 326,061.90 : x
  2. Step 2: Convert to fraction form
    887,100.30/1,330,650.45 = 326,061.90/x
  3. Step 3: Cross multiply
    887,100.30x = 1,330,650.45 × 326,061.90
  4. Step 4: Simplify right side
    887,100.30x = 433,874,413,962.86
  5. Step 5: Solve for x
    x = 433,874,413,962.86/887,100.30
  6. Step 6: Final answer
    x = 489,092.85

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Double scale
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Similar ratio
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1.5x scale

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.