Home / 709,786.24-1,063,476.42-428,713

Finding the Fourth Proportional to 709,786.24, 1,063,476.42 and 428,713

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Solution

The fourth proportional to 709,786.24, 1,063,476.42 and 428,713 is: 642,342.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,786.24 : 1,063,476.42 = 428,713 : x
  2. Step 2: Convert to fraction form
    709,786.24/1,063,476.42 = 428,713/x
  3. Step 3: Cross multiply
    709,786.24x = 1,063,476.42 × 428,713
  4. Step 4: Simplify right side
    709,786.24x = 455,926,166,447.46
  5. Step 5: Solve for x
    x = 455,926,166,447.46/709,786.24
  6. Step 6: Final answer
    x = 642,342.92

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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.