Home / 782,904.50-1,080,408.21-425,208.50

Finding the Fourth Proportional to 782,904.50, 1,080,408.21 and 425,208.50

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Solution

The fourth proportional to 782,904.50, 1,080,408.21 and 425,208.50 is: 586,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,904.50 : 1,080,408.21 = 425,208.50 : x
  2. Step 2: Convert to fraction form
    782,904.50/1,080,408.21 = 425,208.50/x
  3. Step 3: Cross multiply
    782,904.50x = 1,080,408.21 × 425,208.50
  4. Step 4: Simplify right side
    782,904.50x = 459,398,754,361.79
  5. Step 5: Solve for x
    x = 459,398,754,361.79/782,904.50
  6. Step 6: Final answer
    x = 586,787.73

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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.