Home / 1,399,106.11-2,098,424.41-388,330.76

Finding the Fourth Proportional to 1,399,106.11, 2,098,424.41 and 388,330.76

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Solution

The fourth proportional to 1,399,106.11, 2,098,424.41 and 388,330.76 is: 582,430.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,106.11 : 2,098,424.41 = 388,330.76 : x
  2. Step 2: Convert to fraction form
    1,399,106.11/2,098,424.41 = 388,330.76/x
  3. Step 3: Cross multiply
    1,399,106.11x = 2,098,424.41 × 388,330.76
  4. Step 4: Simplify right side
    1,399,106.11x = 814,882,745,937.85
  5. Step 5: Solve for x
    x = 814,882,745,937.85/1,399,106.11
  6. Step 6: Final answer
    x = 582,430.98

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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.