Home / 753,890.67-1,040,377.20-409,726.59

Finding the Fourth Proportional to 753,890.67, 1,040,377.20 and 409,726.59

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Solution

The fourth proportional to 753,890.67, 1,040,377.20 and 409,726.59 is: 565,427.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,890.67 : 1,040,377.20 = 409,726.59 : x
  2. Step 2: Convert to fraction form
    753,890.67/1,040,377.20 = 409,726.59/x
  3. Step 3: Cross multiply
    753,890.67x = 1,040,377.20 × 409,726.59
  4. Step 4: Simplify right side
    753,890.67x = 426,270,202,469.75
  5. Step 5: Solve for x
    x = 426,270,202,469.75/753,890.67
  6. Step 6: Final answer
    x = 565,427.08

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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.