Home / 822,255.20-1,233,213.30-316,642.64

Finding the Fourth Proportional to 822,255.20, 1,233,213.30 and 316,642.64

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Solution

The fourth proportional to 822,255.20, 1,233,213.30 and 316,642.64 is: 474,898.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,255.20 : 1,233,213.30 = 316,642.64 : x
  2. Step 2: Convert to fraction form
    822,255.20/1,233,213.30 = 316,642.64/x
  3. Step 3: Cross multiply
    822,255.20x = 1,233,213.30 × 316,642.64
  4. Step 4: Simplify right side
    822,255.20x = 390,487,914,995.11
  5. Step 5: Solve for x
    x = 390,487,914,995.11/822,255.20
  6. Step 6: Final answer
    x = 474,898.69

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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.