Home / 652,369.28-899,436.16-422,520.96

Finding the Fourth Proportional to 652,369.28, 899,436.16 and 422,520.96

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Solution

The fourth proportional to 652,369.28, 899,436.16 and 422,520.96 is: 582,539.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,369.28 : 899,436.16 = 422,520.96 : x
  2. Step 2: Convert to fraction form
    652,369.28/899,436.16 = 422,520.96/x
  3. Step 3: Cross multiply
    652,369.28x = 899,436.16 × 422,520.96
  4. Step 4: Simplify right side
    652,369.28x = 380,030,629,781.91
  5. Step 5: Solve for x
    x = 380,030,629,781.91/652,369.28
  6. Step 6: Final answer
    x = 582,539.13

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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.