Home / 880,230.60-1,320,345.90-281,211.30

Finding the Fourth Proportional to 880,230.60, 1,320,345.90 and 281,211.30

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Solution

The fourth proportional to 880,230.60, 1,320,345.90 and 281,211.30 is: 421,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,230.60 : 1,320,345.90 = 281,211.30 : x
  2. Step 2: Convert to fraction form
    880,230.60/1,320,345.90 = 281,211.30/x
  3. Step 3: Cross multiply
    880,230.60x = 1,320,345.90 × 281,211.30
  4. Step 4: Simplify right side
    880,230.60x = 371,296,186,988.67
  5. Step 5: Solve for x
    x = 371,296,186,988.67/880,230.60
  6. Step 6: Final answer
    x = 421,816.95

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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.