Home / 1,432,237.38-1,976,448.13-787,657.50

Finding the Fourth Proportional to 1,432,237.38, 1,976,448.13 and 787,657.50

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Solution

The fourth proportional to 1,432,237.38, 1,976,448.13 and 787,657.50 is: 1,086,945.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,237.38 : 1,976,448.13 = 787,657.50 : x
  2. Step 2: Convert to fraction form
    1,432,237.38/1,976,448.13 = 787,657.50/x
  3. Step 3: Cross multiply
    1,432,237.38x = 1,976,448.13 × 787,657.50
  4. Step 4: Simplify right side
    1,432,237.38x = 1,556,764,190,986.33
  5. Step 5: Solve for x
    x = 1,556,764,190,986.33/1,432,237.38
  6. Step 6: Final answer
    x = 1,086,945.65

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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.