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Finding the Fourth Proportional to 555,226.56, 766,212.60 and 310,211.37

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Solution

The fourth proportional to 555,226.56, 766,212.60 and 310,211.37 is: 428,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,226.56 : 766,212.60 = 310,211.37 : x
  2. Step 2: Convert to fraction form
    555,226.56/766,212.60 = 310,211.37/x
  3. Step 3: Cross multiply
    555,226.56x = 766,212.60 × 310,211.37
  4. Step 4: Simplify right side
    555,226.56x = 237,687,861,084.32
  5. Step 5: Solve for x
    x = 237,687,861,084.32/555,226.56
  6. Step 6: Final answer
    x = 428,091.66

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1.5x scale

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.