Home / 1,079,674.75-1,619,861.90-321,522.50

Finding the Fourth Proportional to 1,079,674.75, 1,619,861.90 and 321,522.50

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Solution

The fourth proportional to 1,079,674.75, 1,619,861.90 and 321,522.50 is: 482,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,674.75 : 1,619,861.90 = 321,522.50 : x
  2. Step 2: Convert to fraction form
    1,079,674.75/1,619,861.90 = 321,522.50/x
  3. Step 3: Cross multiply
    1,079,674.75x = 1,619,861.90 × 321,522.50
  4. Step 4: Simplify right side
    1,079,674.75x = 520,822,041,073.07
  5. Step 5: Solve for x
    x = 520,822,041,073.07/1,079,674.75
  6. Step 6: Final answer
    x = 482,387.90

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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.