Home / 684,733.80-1,025,132.40-419,013.30

Finding the Fourth Proportional to 684,733.80, 1,025,132.40 and 419,013.30

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Solution

The fourth proportional to 684,733.80, 1,025,132.40 and 419,013.30 is: 627,315.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,733.80 : 1,025,132.40 = 419,013.30 : x
  2. Step 2: Convert to fraction form
    684,733.80/1,025,132.40 = 419,013.30/x
  3. Step 3: Cross multiply
    684,733.80x = 1,025,132.40 × 419,013.30
  4. Step 4: Simplify right side
    684,733.80x = 429,544,109,860.92
  5. Step 5: Solve for x
    x = 429,544,109,860.92/684,733.80
  6. Step 6: Final answer
    x = 627,315.48

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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.