Home / 1,262,811.85-1,894,234.20-421,363.60

Finding the Fourth Proportional to 1,262,811.85, 1,894,234.20 and 421,363.60

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Solution

The fourth proportional to 1,262,811.85, 1,894,234.20 and 421,363.60 is: 632,050.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,811.85 : 1,894,234.20 = 421,363.60 : x
  2. Step 2: Convert to fraction form
    1,262,811.85/1,894,234.20 = 421,363.60/x
  3. Step 3: Cross multiply
    1,262,811.85x = 1,894,234.20 × 421,363.60
  4. Step 4: Simplify right side
    1,262,811.85x = 798,161,341,755.12
  5. Step 5: Solve for x
    x = 798,161,341,755.12/1,262,811.85
  6. Step 6: Final answer
    x = 632,050.88

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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.