Home / 1,378,850.40-1,902,036.30-827,423.40

Finding the Fourth Proportional to 1,378,850.40, 1,902,036.30 and 827,423.40

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Solution

The fourth proportional to 1,378,850.40, 1,902,036.30 and 827,423.40 is: 1,141,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,850.40 : 1,902,036.30 = 827,423.40 : x
  2. Step 2: Convert to fraction form
    1,378,850.40/1,902,036.30 = 827,423.40/x
  3. Step 3: Cross multiply
    1,378,850.40x = 1,902,036.30 × 827,423.40
  4. Step 4: Simplify right side
    1,378,850.40x = 1,573,789,342,269.42
  5. Step 5: Solve for x
    x = 1,573,789,342,269.42/1,378,850.40
  6. Step 6: Final answer
    x = 1,141,377.88

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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.