Home / 646,211.89-969,667.80-622,650.61

Finding the Fourth Proportional to 646,211.89, 969,667.80 and 622,650.61

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Solution

The fourth proportional to 646,211.89, 969,667.80 and 622,650.61 is: 934,313.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,211.89 : 969,667.80 = 622,650.61 : x
  2. Step 2: Convert to fraction form
    646,211.89/969,667.80 = 622,650.61/x
  3. Step 3: Cross multiply
    646,211.89x = 969,667.80 × 622,650.61
  4. Step 4: Simplify right side
    646,211.89x = 603,764,247,167.36
  5. Step 5: Solve for x
    x = 603,764,247,167.36/646,211.89
  6. Step 6: Final answer
    x = 934,313.12

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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.