Home / 1,129,540.24-1,558,758.51-646,113.46

Finding the Fourth Proportional to 1,129,540.24, 1,558,758.51 and 646,113.46

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Solution

The fourth proportional to 1,129,540.24, 1,558,758.51 and 646,113.46 is: 891,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,540.24 : 1,558,758.51 = 646,113.46 : x
  2. Step 2: Convert to fraction form
    1,129,540.24/1,558,758.51 = 646,113.46/x
  3. Step 3: Cross multiply
    1,129,540.24x = 1,558,758.51 × 646,113.46
  4. Step 4: Simplify right side
    1,129,540.24x = 1,007,134,854,200.54
  5. Step 5: Solve for x
    x = 1,007,134,854,200.54/1,129,540.24
  6. Step 6: Final answer
    x = 891,632.56

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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.