Home / 890,517.70-1,228,915.16-522,923.10

Finding the Fourth Proportional to 890,517.70, 1,228,915.16 and 522,923.10

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Solution

The fourth proportional to 890,517.70, 1,228,915.16 and 522,923.10 is: 721,634.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,517.70 : 1,228,915.16 = 522,923.10 : x
  2. Step 2: Convert to fraction form
    890,517.70/1,228,915.16 = 522,923.10/x
  3. Step 3: Cross multiply
    890,517.70x = 1,228,915.16 × 522,923.10
  4. Step 4: Simplify right side
    890,517.70x = 642,628,125,104.20
  5. Step 5: Solve for x
    x = 642,628,125,104.20/890,517.70
  6. Step 6: Final answer
    x = 721,634.31

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.