Home / 1,227,199.20-1,693,500.18-668,380.91

Finding the Fourth Proportional to 1,227,199.20, 1,693,500.18 and 668,380.91

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Solution

The fourth proportional to 1,227,199.20, 1,693,500.18 and 668,380.91 is: 922,346.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,199.20 : 1,693,500.18 = 668,380.91 : x
  2. Step 2: Convert to fraction form
    1,227,199.20/1,693,500.18 = 668,380.91/x
  3. Step 3: Cross multiply
    1,227,199.20x = 1,693,500.18 × 668,380.91
  4. Step 4: Simplify right side
    1,227,199.20x = 1,131,903,182,926.06
  5. Step 5: Solve for x
    x = 1,131,903,182,926.06/1,227,199.20
  6. Step 6: Final answer
    x = 922,346.74

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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.