Home / 1,262,809.85-1,894,231.20-421,361.60

Finding the Fourth Proportional to 1,262,809.85, 1,894,231.20 and 421,361.60

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Solution

The fourth proportional to 1,262,809.85, 1,894,231.20 and 421,361.60 is: 632,047.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,809.85 : 1,894,231.20 = 421,361.60 : x
  2. Step 2: Convert to fraction form
    1,262,809.85/1,894,231.20 = 421,361.60/x
  3. Step 3: Cross multiply
    1,262,809.85x = 1,894,231.20 × 421,361.60
  4. Step 4: Simplify right side
    1,262,809.85x = 798,156,279,730.76
  5. Step 5: Solve for x
    x = 798,156,279,730.76/1,262,809.85
  6. Step 6: Final answer
    x = 632,047.88

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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.