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Finding the Fourth Proportional to 662,381.69, 993,331.60 and 283,330.18

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Solution

The fourth proportional to 662,381.69, 993,331.60 and 283,330.18 is: 424,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,381.69 : 993,331.60 = 283,330.18 : x
  2. Step 2: Convert to fraction form
    662,381.69/993,331.60 = 283,330.18/x
  3. Step 3: Cross multiply
    662,381.69x = 993,331.60 × 283,330.18
  4. Step 4: Simplify right side
    662,381.69x = 281,440,817,836.03
  5. Step 5: Solve for x
    x = 281,440,817,836.03/662,381.69
  6. Step 6: Final answer
    x = 424,892.20

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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.