Home / 753,726.24-1,040,103.72-414,128.88

Finding the Fourth Proportional to 753,726.24, 1,040,103.72 and 414,128.88

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Solution

The fourth proportional to 753,726.24, 1,040,103.72 and 414,128.88 is: 571,476.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,726.24 : 1,040,103.72 = 414,128.88 : x
  2. Step 2: Convert to fraction form
    753,726.24/1,040,103.72 = 414,128.88/x
  3. Step 3: Cross multiply
    753,726.24x = 1,040,103.72 × 414,128.88
  4. Step 4: Simplify right side
    753,726.24x = 430,736,988,647.43
  5. Step 5: Solve for x
    x = 430,736,988,647.43/753,726.24
  6. Step 6: Final answer
    x = 571,476.71

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1.5x scale

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.