Home / 1,428,559.20-1,971,367.31-783,962.82

Finding the Fourth Proportional to 1,428,559.20, 1,971,367.31 and 783,962.82

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Solution

The fourth proportional to 1,428,559.20, 1,971,367.31 and 783,962.82 is: 1,081,844.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,559.20 : 1,971,367.31 = 783,962.82 : x
  2. Step 2: Convert to fraction form
    1,428,559.20/1,971,367.31 = 783,962.82/x
  3. Step 3: Cross multiply
    1,428,559.20x = 1,971,367.31 × 783,962.82
  4. Step 4: Simplify right side
    1,428,559.20x = 1,545,478,675,603.41
  5. Step 5: Solve for x
    x = 1,545,478,675,603.41/1,428,559.20
  6. Step 6: Final answer
    x = 1,081,844.33

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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.