Home / 1,213,200.30-1,674,248.46-669,343.20

Finding the Fourth Proportional to 1,213,200.30, 1,674,248.46 and 669,343.20

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Solution

The fourth proportional to 1,213,200.30, 1,674,248.46 and 669,343.20 is: 923,711.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,200.30 : 1,674,248.46 = 669,343.20 : x
  2. Step 2: Convert to fraction form
    1,213,200.30/1,674,248.46 = 669,343.20/x
  3. Step 3: Cross multiply
    1,213,200.30x = 1,674,248.46 × 669,343.20
  4. Step 4: Simplify right side
    1,213,200.30x = 1,120,646,821,811.47
  5. Step 5: Solve for x
    x = 1,120,646,821,811.47/1,213,200.30
  6. Step 6: Final answer
    x = 923,711.30

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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.