Home / 846,820.89-1,269,963.81-278,108.28

Finding the Fourth Proportional to 846,820.89, 1,269,963.81 and 278,108.28

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Solution

The fourth proportional to 846,820.89, 1,269,963.81 and 278,108.28 is: 417,074.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    846,820.89 : 1,269,963.81 = 278,108.28 : x
  2. Step 2: Convert to fraction form
    846,820.89/1,269,963.81 = 278,108.28/x
  3. Step 3: Cross multiply
    846,820.89x = 1,269,963.81 × 278,108.28
  4. Step 4: Simplify right side
    846,820.89x = 353,187,450,861.35
  5. Step 5: Solve for x
    x = 353,187,450,861.35/846,820.89
  6. Step 6: Final answer
    x = 417,074.56

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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.