Home / 2,639,780.76-3,642,897.30-1,432,556.76

Finding the Fourth Proportional to 2,639,780.76, 3,642,897.30 and 1,432,556.76

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Solution

The fourth proportional to 2,639,780.76, 3,642,897.30 and 1,432,556.76 is: 1,976,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,780.76 : 3,642,897.30 = 1,432,556.76 : x
  2. Step 2: Convert to fraction form
    2,639,780.76/3,642,897.30 = 1,432,556.76/x
  3. Step 3: Cross multiply
    2,639,780.76x = 3,642,897.30 × 1,432,556.76
  4. Step 4: Simplify right side
    2,639,780.76x = 5,218,657,153,100.75
  5. Step 5: Solve for x
    x = 5,218,657,153,100.75/2,639,780.76
  6. Step 6: Final answer
    x = 1,976,928.25

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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.