Home / 681,200.10-1,021,800.15-326,031.30

Finding the Fourth Proportional to 681,200.10, 1,021,800.15 and 326,031.30

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Solution

The fourth proportional to 681,200.10, 1,021,800.15 and 326,031.30 is: 489,046.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,200.10 : 1,021,800.15 = 326,031.30 : x
  2. Step 2: Convert to fraction form
    681,200.10/1,021,800.15 = 326,031.30/x
  3. Step 3: Cross multiply
    681,200.10x = 1,021,800.15 × 326,031.30
  4. Step 4: Simplify right side
    681,200.10x = 333,138,831,244.70
  5. Step 5: Solve for x
    x = 333,138,831,244.70/681,200.10
  6. Step 6: Final answer
    x = 489,046.95

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Half scale
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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.