Home / 1,280,955.26-1,767,654.68-707,980.70

Finding the Fourth Proportional to 1,280,955.26, 1,767,654.68 and 707,980.70

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Solution

The fourth proportional to 1,280,955.26, 1,767,654.68 and 707,980.70 is: 976,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,955.26 : 1,767,654.68 = 707,980.70 : x
  2. Step 2: Convert to fraction form
    1,280,955.26/1,767,654.68 = 707,980.70/x
  3. Step 3: Cross multiply
    1,280,955.26x = 1,767,654.68 × 707,980.70
  4. Step 4: Simplify right side
    1,280,955.26x = 1,251,465,397,704.68
  5. Step 5: Solve for x
    x = 1,251,465,397,704.68/1,280,955.26
  6. Step 6: Final answer
    x = 976,978.23

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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.