Home / 1,040,391.95-1,561,473.65-409,748.63

Finding the Fourth Proportional to 1,040,391.95, 1,561,473.65 and 409,748.63

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Solution

The fourth proportional to 1,040,391.95, 1,561,473.65 and 409,748.63 is: 614,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,391.95 : 1,561,473.65 = 409,748.63 : x
  2. Step 2: Convert to fraction form
    1,040,391.95/1,561,473.65 = 409,748.63/x
  3. Step 3: Cross multiply
    1,040,391.95x = 1,561,473.65 × 409,748.63
  4. Step 4: Simplify right side
    1,040,391.95x = 639,811,682,085.60
  5. Step 5: Solve for x
    x = 639,811,682,085.60/1,040,391.95
  6. Step 6: Final answer
    x = 614,971.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.