Home / 1,391,470.93-2,087,240.42-788,121.37

Finding the Fourth Proportional to 1,391,470.93, 2,087,240.42 and 788,121.37

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Solution

The fourth proportional to 1,391,470.93, 2,087,240.42 and 788,121.37 is: 1,182,201.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,470.93 : 2,087,240.42 = 788,121.37 : x
  2. Step 2: Convert to fraction form
    1,391,470.93/2,087,240.42 = 788,121.37/x
  3. Step 3: Cross multiply
    1,391,470.93x = 2,087,240.42 × 788,121.37
  4. Step 4: Simplify right side
    1,391,470.93x = 1,644,998,779,329.78
  5. Step 5: Solve for x
    x = 1,644,998,779,329.78/1,391,470.93
  6. Step 6: Final answer
    x = 1,182,201.33

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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.