Home / 642,349.44-963,449.09-258,082.72

Finding the Fourth Proportional to 642,349.44, 963,449.09 and 258,082.72

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Solution

The fourth proportional to 642,349.44, 963,449.09 and 258,082.72 is: 387,093.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,349.44 : 963,449.09 = 258,082.72 : x
  2. Step 2: Convert to fraction form
    642,349.44/963,449.09 = 258,082.72/x
  3. Step 3: Cross multiply
    642,349.44x = 963,449.09 × 258,082.72
  4. Step 4: Simplify right side
    642,349.44x = 248,649,559,965.31
  5. Step 5: Solve for x
    x = 248,649,559,965.31/642,349.44
  6. Step 6: Final answer
    x = 387,093.92

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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.