Home / 886,904.10-1,330,356.15-326,340.90

Finding the Fourth Proportional to 886,904.10, 1,330,356.15 and 326,340.90

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Solution

The fourth proportional to 886,904.10, 1,330,356.15 and 326,340.90 is: 489,511.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,904.10 : 1,330,356.15 = 326,340.90 : x
  2. Step 2: Convert to fraction form
    886,904.10/1,330,356.15 = 326,340.90/x
  3. Step 3: Cross multiply
    886,904.10x = 1,330,356.15 × 326,340.90
  4. Step 4: Simplify right side
    886,904.10x = 434,149,623,311.54
  5. Step 5: Solve for x
    x = 434,149,623,311.54/886,904.10
  6. Step 6: Final answer
    x = 489,511.35

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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.