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Finding the Fourth Proportional to 822,817.86, 1,234,344.86 and 254,248.62

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Solution

The fourth proportional to 822,817.86, 1,234,344.86 and 254,248.62 is: 381,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,817.86 : 1,234,344.86 = 254,248.62 : x
  2. Step 2: Convert to fraction form
    822,817.86/1,234,344.86 = 254,248.62/x
  3. Step 3: Cross multiply
    822,817.86x = 1,234,344.86 × 254,248.62
  4. Step 4: Simplify right side
    822,817.86x = 313,830,472,312.49
  5. Step 5: Solve for x
    x = 313,830,472,312.49/822,817.86
  6. Step 6: Final answer
    x = 381,409.41

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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.