Home / 1,432,625.28-2,148,198.39-421,615.95

Finding the Fourth Proportional to 1,432,625.28, 2,148,198.39 and 421,615.95

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Solution

The fourth proportional to 1,432,625.28, 2,148,198.39 and 421,615.95 is: 632,206.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,625.28 : 2,148,198.39 = 421,615.95 : x
  2. Step 2: Convert to fraction form
    1,432,625.28/2,148,198.39 = 421,615.95/x
  3. Step 3: Cross multiply
    1,432,625.28x = 2,148,198.39 × 421,615.95
  4. Step 4: Simplify right side
    1,432,625.28x = 905,714,704,988.32
  5. Step 5: Solve for x
    x = 905,714,704,988.32/1,432,625.28
  6. Step 6: Final answer
    x = 632,206.28

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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.