Home / 1,432,626.28-2,148,199.89-421,616.95

Finding the Fourth Proportional to 1,432,626.28, 2,148,199.89 and 421,616.95

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Solution

The fourth proportional to 1,432,626.28, 2,148,199.89 and 421,616.95 is: 632,207.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,626.28 : 2,148,199.89 = 421,616.95 : x
  2. Step 2: Convert to fraction form
    1,432,626.28/2,148,199.89 = 421,616.95/x
  3. Step 3: Cross multiply
    1,432,626.28x = 2,148,199.89 × 421,616.95
  4. Step 4: Simplify right side
    1,432,626.28x = 905,717,485,612.14
  5. Step 5: Solve for x
    x = 905,717,485,612.14/1,432,626.28
  6. Step 6: Final answer
    x = 632,207.78

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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.