Home / 1,264,129.72-1,895,799.30-422,484.64

Finding the Fourth Proportional to 1,264,129.72, 1,895,799.30 and 422,484.64

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Solution

The fourth proportional to 1,264,129.72, 1,895,799.30 and 422,484.64 is: 633,594.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,129.72 : 1,895,799.30 = 422,484.64 : x
  2. Step 2: Convert to fraction form
    1,264,129.72/1,895,799.30 = 422,484.64/x
  3. Step 3: Cross multiply
    1,264,129.72x = 1,895,799.30 × 422,484.64
  4. Step 4: Simplify right side
    1,264,129.72x = 800,946,084,772.75
  5. Step 5: Solve for x
    x = 800,946,084,772.75/1,264,129.72
  6. Step 6: Final answer
    x = 633,594.85

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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.