Home / 921,496.20-1,382,244.30-522,915.45

Finding the Fourth Proportional to 921,496.20, 1,382,244.30 and 522,915.45

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Solution

The fourth proportional to 921,496.20, 1,382,244.30 and 522,915.45 is: 784,373.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,496.20 : 1,382,244.30 = 522,915.45 : x
  2. Step 2: Convert to fraction form
    921,496.20/1,382,244.30 = 522,915.45/x
  3. Step 3: Cross multiply
    921,496.20x = 1,382,244.30 × 522,915.45
  4. Step 4: Simplify right side
    921,496.20x = 722,796,900,144.44
  5. Step 5: Solve for x
    x = 722,796,900,144.44/921,496.20
  6. Step 6: Final answer
    x = 784,373.18

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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.