Home / 1,265,480.25-1,746,439.86-721,720.98

Finding the Fourth Proportional to 1,265,480.25, 1,746,439.86 and 721,720.98

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Solution

The fourth proportional to 1,265,480.25, 1,746,439.86 and 721,720.98 is: 996,018.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,480.25 : 1,746,439.86 = 721,720.98 : x
  2. Step 2: Convert to fraction form
    1,265,480.25/1,746,439.86 = 721,720.98/x
  3. Step 3: Cross multiply
    1,265,480.25x = 1,746,439.86 × 721,720.98
  4. Step 4: Simplify right side
    1,265,480.25x = 1,260,442,287,270.26
  5. Step 5: Solve for x
    x = 1,260,442,287,270.26/1,265,480.25
  6. Step 6: Final answer
    x = 996,018.93

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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.