Home / 800,550.78-1,200,971.70-379,822.74

Finding the Fourth Proportional to 800,550.78, 1,200,971.70 and 379,822.74

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Solution

The fourth proportional to 800,550.78, 1,200,971.70 and 379,822.74 is: 569,803.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,550.78 : 1,200,971.70 = 379,822.74 : x
  2. Step 2: Convert to fraction form
    800,550.78/1,200,971.70 = 379,822.74/x
  3. Step 3: Cross multiply
    800,550.78x = 1,200,971.70 × 379,822.74
  4. Step 4: Simplify right side
    800,550.78x = 456,156,361,756.46
  5. Step 5: Solve for x
    x = 456,156,361,756.46/800,550.78
  6. Step 6: Final answer
    x = 569,803.16

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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.