Home / 721,876.49-1,082,440.97-384,826.61

Finding the Fourth Proportional to 721,876.49, 1,082,440.97 and 384,826.61

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Solution

The fourth proportional to 721,876.49, 1,082,440.97 and 384,826.61 is: 577,040.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,876.49 : 1,082,440.97 = 384,826.61 : x
  2. Step 2: Convert to fraction form
    721,876.49/1,082,440.97 = 384,826.61/x
  3. Step 3: Cross multiply
    721,876.49x = 1,082,440.97 × 384,826.61
  4. Step 4: Simplify right side
    721,876.49x = 416,552,089,010.21
  5. Step 5: Solve for x
    x = 416,552,089,010.21/721,876.49
  6. Step 6: Final answer
    x = 577,040.66

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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.