Home / 2,042,164.20-2,818,139.88-1,278,638.76

Finding the Fourth Proportional to 2,042,164.20, 2,818,139.88 and 1,278,638.76

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Solution

The fourth proportional to 2,042,164.20, 2,818,139.88 and 1,278,638.76 is: 1,764,492.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042,164.20 : 2,818,139.88 = 1,278,638.76 : x
  2. Step 2: Convert to fraction form
    2,042,164.20/2,818,139.88 = 1,278,638.76/x
  3. Step 3: Cross multiply
    2,042,164.20x = 2,818,139.88 × 1,278,638.76
  4. Step 4: Simplify right side
    2,042,164.20x = 3,603,382,881,669.75
  5. Step 5: Solve for x
    x = 3,603,382,881,669.75/2,042,164.20
  6. Step 6: Final answer
    x = 1,764,492.24

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1.5x scale

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.