Home / 1,295,726.80-1,788,101.76-722,766.64

Finding the Fourth Proportional to 1,295,726.80, 1,788,101.76 and 722,766.64

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Solution

The fourth proportional to 1,295,726.80, 1,788,101.76 and 722,766.64 is: 997,417.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,726.80 : 1,788,101.76 = 722,766.64 : x
  2. Step 2: Convert to fraction form
    1,295,726.80/1,788,101.76 = 722,766.64/x
  3. Step 3: Cross multiply
    1,295,726.80x = 1,788,101.76 × 722,766.64
  4. Step 4: Simplify right side
    1,295,726.80x = 1,292,380,301,053.29
  5. Step 5: Solve for x
    x = 1,292,380,301,053.29/1,295,726.80
  6. Step 6: Final answer
    x = 997,417.28

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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.