Home / 1,947,891.20-2,919,849.60-1,316,868.80

Finding the Fourth Proportional to 1,947,891.20, 2,919,849.60 and 1,316,868.80

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Solution

The fourth proportional to 1,947,891.20, 2,919,849.60 and 1,316,868.80 is: 1,973,959.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,891.20 : 2,919,849.60 = 1,316,868.80 : x
  2. Step 2: Convert to fraction form
    1,947,891.20/2,919,849.60 = 1,316,868.80/x
  3. Step 3: Cross multiply
    1,947,891.20x = 2,919,849.60 × 1,316,868.80
  4. Step 4: Simplify right side
    1,947,891.20x = 3,845,058,838,932.48
  5. Step 5: Solve for x
    x = 3,845,058,838,932.48/1,947,891.20
  6. Step 6: Final answer
    x = 1,973,959.76

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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.