Home / 1,399,105.74-2,098,423.85-388,330.39

Finding the Fourth Proportional to 1,399,105.74, 2,098,423.85 and 388,330.39

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Solution

The fourth proportional to 1,399,105.74, 2,098,423.85 and 388,330.39 is: 582,430.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,105.74 : 2,098,423.85 = 388,330.39 : x
  2. Step 2: Convert to fraction form
    1,399,105.74/2,098,423.85 = 388,330.39/x
  3. Step 3: Cross multiply
    1,399,105.74x = 2,098,423.85 × 388,330.39
  4. Step 4: Simplify right side
    1,399,105.74x = 814,881,739,622.03
  5. Step 5: Solve for x
    x = 814,881,739,622.03/1,399,105.74
  6. Step 6: Final answer
    x = 582,430.42

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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.