Home / 756,545.50-1,134,522.99-330,211.72

Finding the Fourth Proportional to 756,545.50, 1,134,522.99 and 330,211.72

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Solution

The fourth proportional to 756,545.50, 1,134,522.99 and 330,211.72 is: 495,188.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,545.50 : 1,134,522.99 = 330,211.72 : x
  2. Step 2: Convert to fraction form
    756,545.50/1,134,522.99 = 330,211.72/x
  3. Step 3: Cross multiply
    756,545.50x = 1,134,522.99 × 330,211.72
  4. Step 4: Simplify right side
    756,545.50x = 374,632,787,907.44
  5. Step 5: Solve for x
    x = 374,632,787,907.44/756,545.50
  6. Step 6: Final answer
    x = 495,188.71

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1.5x scale

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.