Home / 1,432,388.46-2,148,249.44-421,239.95

Finding the Fourth Proportional to 1,432,388.46, 2,148,249.44 and 421,239.95

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Solution

The fourth proportional to 1,432,388.46, 2,148,249.44 and 421,239.95 is: 631,761.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,432,388.46 : 2,148,249.44 = 421,239.95 : x
  2. Step 2: Convert to fraction form
    1,432,388.46/2,148,249.44 = 421,239.95/x
  3. Step 3: Cross multiply
    1,432,388.46x = 2,148,249.44 × 421,239.95
  4. Step 4: Simplify right side
    1,432,388.46x = 904,928,473,845.68
  5. Step 5: Solve for x
    x = 904,928,473,845.68/1,432,388.46
  6. Step 6: Final answer
    x = 631,761.91

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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.