Home / 769,634.81-1,062,089.11-425,479.49

Finding the Fourth Proportional to 769,634.81, 1,062,089.11 and 425,479.49

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Solution

The fourth proportional to 769,634.81, 1,062,089.11 and 425,479.49 is: 587,157.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,634.81 : 1,062,089.11 = 425,479.49 : x
  2. Step 2: Convert to fraction form
    769,634.81/1,062,089.11 = 425,479.49/x
  3. Step 3: Cross multiply
    769,634.81x = 1,062,089.11 × 425,479.49
  4. Step 4: Simplify right side
    769,634.81x = 451,897,130,729.96
  5. Step 5: Solve for x
    x = 451,897,130,729.96/769,634.81
  6. Step 6: Final answer
    x = 587,157.86

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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.