Home / 686,278.96-1,029,425.42-180,912.47

Finding the Fourth Proportional to 686,278.96, 1,029,425.42 and 180,912.47

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Solution

The fourth proportional to 686,278.96, 1,029,425.42 and 180,912.47 is: 271,370.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,278.96 : 1,029,425.42 = 180,912.47 : x
  2. Step 2: Convert to fraction form
    686,278.96/1,029,425.42 = 180,912.47/x
  3. Step 3: Cross multiply
    686,278.96x = 1,029,425.42 × 180,912.47
  4. Step 4: Simplify right side
    686,278.96x = 186,235,890,718.14
  5. Step 5: Solve for x
    x = 186,235,890,718.14/686,278.96
  6. Step 6: Final answer
    x = 271,370.54

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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.