Home / 753,885.23-1,040,369.68-409,721.15

Finding the Fourth Proportional to 753,885.23, 1,040,369.68 and 409,721.15

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Solution

The fourth proportional to 753,885.23, 1,040,369.68 and 409,721.15 is: 565,419.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,885.23 : 1,040,369.68 = 409,721.15 : x
  2. Step 2: Convert to fraction form
    753,885.23/1,040,369.68 = 409,721.15/x
  3. Step 3: Cross multiply
    753,885.23x = 1,040,369.68 × 409,721.15
  4. Step 4: Simplify right side
    753,885.23x = 426,261,455,488.58
  5. Step 5: Solve for x
    x = 426,261,455,488.58/753,885.23
  6. Step 6: Final answer
    x = 565,419.56

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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.