Home / 1,428,479.13-1,971,358.08-783,922.41

Finding the Fourth Proportional to 1,428,479.13, 1,971,358.08 and 783,922.41

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Solution

The fourth proportional to 1,428,479.13, 1,971,358.08 and 783,922.41 is: 1,081,844.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,479.13 : 1,971,358.08 = 783,922.41 : x
  2. Step 2: Convert to fraction form
    1,428,479.13/1,971,358.08 = 783,922.41/x
  3. Step 3: Cross multiply
    1,428,479.13x = 1,971,358.08 × 783,922.41
  4. Step 4: Simplify right side
    1,428,479.13x = 1,545,391,777,046.57
  5. Step 5: Solve for x
    x = 1,545,391,777,046.57/1,428,479.13
  6. Step 6: Final answer
    x = 1,081,844.14

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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.