Home / 1,288,549.85-1,777,985.40-744,736.25

Finding the Fourth Proportional to 1,288,549.85, 1,777,985.40 and 744,736.25

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Solution

The fourth proportional to 1,288,549.85, 1,777,985.40 and 744,736.25 is: 1,027,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,549.85 : 1,777,985.40 = 744,736.25 : x
  2. Step 2: Convert to fraction form
    1,288,549.85/1,777,985.40 = 744,736.25/x
  3. Step 3: Cross multiply
    1,288,549.85x = 1,777,985.40 × 744,736.25
  4. Step 4: Simplify right side
    1,288,549.85x = 1,324,130,170,460.82
  5. Step 5: Solve for x
    x = 1,324,130,170,460.82/1,288,549.85
  6. Step 6: Final answer
    x = 1,027,612.69

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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.