Home / 815,475.64-1,222,728.90-310,073.56

Finding the Fourth Proportional to 815,475.64, 1,222,728.90 and 310,073.56

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Solution

The fourth proportional to 815,475.64, 1,222,728.90 and 310,073.56 is: 464,926.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,475.64 : 1,222,728.90 = 310,073.56 : x
  2. Step 2: Convert to fraction form
    815,475.64/1,222,728.90 = 310,073.56/x
  3. Step 3: Cross multiply
    815,475.64x = 1,222,728.90 × 310,073.56
  4. Step 4: Simplify right side
    815,475.64x = 379,135,902,937.88
  5. Step 5: Solve for x
    x = 379,135,902,937.88/815,475.64
  6. Step 6: Final answer
    x = 464,926.09

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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.