Home / 762,108.28-1,051,662.18-422,576.53

Finding the Fourth Proportional to 762,108.28, 1,051,662.18 and 422,576.53

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Solution

The fourth proportional to 762,108.28, 1,051,662.18 and 422,576.53 is: 583,129.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,108.28 : 1,051,662.18 = 422,576.53 : x
  2. Step 2: Convert to fraction form
    762,108.28/1,051,662.18 = 422,576.53/x
  3. Step 3: Cross multiply
    762,108.28x = 1,051,662.18 × 422,576.53
  4. Step 4: Simplify right side
    762,108.28x = 444,407,753,712.14
  5. Step 5: Solve for x
    x = 444,407,753,712.14/762,108.28
  6. Step 6: Final answer
    x = 583,129.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.