Home / 1,428,508.44-1,971,398.45-783,951.89

Finding the Fourth Proportional to 1,428,508.44, 1,971,398.45 and 783,951.89

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Solution

The fourth proportional to 1,428,508.44, 1,971,398.45 and 783,951.89 is: 1,081,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,508.44 : 1,971,398.45 = 783,951.89 : x
  2. Step 2: Convert to fraction form
    1,428,508.44/1,971,398.45 = 783,951.89/x
  3. Step 3: Cross multiply
    1,428,508.44x = 1,971,398.45 × 783,951.89
  4. Step 4: Simplify right side
    1,428,508.44x = 1,545,481,532,923.46
  5. Step 5: Solve for x
    x = 1,545,481,532,923.46/1,428,508.44
  6. Step 6: Final answer
    x = 1,081,884.78

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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.