Home / 715,173.73-1,072,642.68-235,407.78

Finding the Fourth Proportional to 715,173.73, 1,072,642.68 and 235,407.78

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Solution

The fourth proportional to 715,173.73, 1,072,642.68 and 235,407.78 is: 353,072.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,173.73 : 1,072,642.68 = 235,407.78 : x
  2. Step 2: Convert to fraction form
    715,173.73/1,072,642.68 = 235,407.78/x
  3. Step 3: Cross multiply
    715,173.73x = 1,072,642.68 × 235,407.78
  4. Step 4: Simplify right side
    715,173.73x = 252,508,432,032.05
  5. Step 5: Solve for x
    x = 252,508,432,032.05/715,173.73
  6. Step 6: Final answer
    x = 353,072.86

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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.