Home / 2,758,966.20-4,138,624.23-865,782.36

Finding the Fourth Proportional to 2,758,966.20, 4,138,624.23 and 865,782.36

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Solution

The fourth proportional to 2,758,966.20, 4,138,624.23 and 865,782.36 is: 1,298,728.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758,966.20 : 4,138,624.23 = 865,782.36 : x
  2. Step 2: Convert to fraction form
    2,758,966.20/4,138,624.23 = 865,782.36/x
  3. Step 3: Cross multiply
    2,758,966.20x = 4,138,624.23 × 865,782.36
  4. Step 4: Simplify right side
    2,758,966.20x = 3,583,147,853,002.58
  5. Step 5: Solve for x
    x = 3,583,147,853,002.58/2,758,966.20
  6. Step 6: Final answer
    x = 1,298,728.43

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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.