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Finding the Fourth Proportional to 662,904.20, 994,356.30 and 347,457.80

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Solution

The fourth proportional to 662,904.20, 994,356.30 and 347,457.80 is: 521,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,904.20 : 994,356.30 = 347,457.80 : x
  2. Step 2: Convert to fraction form
    662,904.20/994,356.30 = 347,457.80/x
  3. Step 3: Cross multiply
    662,904.20x = 994,356.30 × 347,457.80
  4. Step 4: Simplify right side
    662,904.20x = 345,496,852,414.14
  5. Step 5: Solve for x
    x = 345,496,852,414.14/662,904.20
  6. Step 6: Final answer
    x = 521,186.70

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Double scale
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Similar ratio
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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.