Home / 2,758,969.20-4,138,628.73-865,785.36

Finding the Fourth Proportional to 2,758,969.20, 4,138,628.73 and 865,785.36

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Solution

The fourth proportional to 2,758,969.20, 4,138,628.73 and 865,785.36 is: 1,298,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,969.20 : 4,138,628.73 = 865,785.36 : x
  2. Step 2: Convert to fraction form
    2,758,969.20/4,138,628.73 = 865,785.36/x
  3. Step 3: Cross multiply
    2,758,969.20x = 4,138,628.73 × 865,785.36
  4. Step 4: Simplify right side
    2,758,969.20x = 3,583,164,164,909.39
  5. Step 5: Solve for x
    x = 3,583,164,164,909.39/2,758,969.20
  6. Step 6: Final answer
    x = 1,298,732.93

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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.