Home / 2,042,155.20-2,818,127.52-1,278,629.76

Finding the Fourth Proportional to 2,042,155.20, 2,818,127.52 and 1,278,629.76

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Solution

The fourth proportional to 2,042,155.20, 2,818,127.52 and 1,278,629.76 is: 1,764,479.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042,155.20 : 2,818,127.52 = 1,278,629.76 : x
  2. Step 2: Convert to fraction form
    2,042,155.20/2,818,127.52 = 1,278,629.76/x
  3. Step 3: Cross multiply
    2,042,155.20x = 2,818,127.52 × 1,278,629.76
  4. Step 4: Simplify right side
    2,042,155.20x = 3,603,341,714,547.00
  5. Step 5: Solve for x
    x = 3,603,341,714,547.00/2,042,155.20
  6. Step 6: Final answer
    x = 1,764,479.86

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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.