Home / 1,432,691.25-2,149,036.85-421,813.36

Finding the Fourth Proportional to 1,432,691.25, 2,149,036.85 and 421,813.36

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Solution

The fourth proportional to 1,432,691.25, 2,149,036.85 and 421,813.36 is: 632,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,691.25 : 2,149,036.85 = 421,813.36 : x
  2. Step 2: Convert to fraction form
    1,432,691.25/2,149,036.85 = 421,813.36/x
  3. Step 3: Cross multiply
    1,432,691.25x = 2,149,036.85 × 421,813.36
  4. Step 4: Simplify right side
    1,432,691.25x = 906,492,452,353.25
  5. Step 5: Solve for x
    x = 906,492,452,353.25/1,432,691.25
  6. Step 6: Final answer
    x = 632,720.03

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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.