Home / 778,259.56-1,167,446.94-279,627.88

Finding the Fourth Proportional to 778,259.56, 1,167,446.94 and 279,627.88

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Solution

The fourth proportional to 778,259.56, 1,167,446.94 and 279,627.88 is: 419,462.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,259.56 : 1,167,446.94 = 279,627.88 : x
  2. Step 2: Convert to fraction form
    778,259.56/1,167,446.94 = 279,627.88/x
  3. Step 3: Cross multiply
    778,259.56x = 1,167,446.94 × 279,627.88
  4. Step 4: Simplify right side
    778,259.56x = 326,450,712,844.69
  5. Step 5: Solve for x
    x = 326,450,712,844.69/778,259.56
  6. Step 6: Final answer
    x = 419,462.52

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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.