Home / 685,669.19-1,029,167.17-330,932.93

Finding the Fourth Proportional to 685,669.19, 1,029,167.17 and 330,932.93

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Solution

The fourth proportional to 685,669.19, 1,029,167.17 and 330,932.93 is: 496,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,669.19 : 1,029,167.17 = 330,932.93 : x
  2. Step 2: Convert to fraction form
    685,669.19/1,029,167.17 = 330,932.93/x
  3. Step 3: Cross multiply
    685,669.19x = 1,029,167.17 × 330,932.93
  4. Step 4: Simplify right side
    685,669.19x = 340,585,307,027.91
  5. Step 5: Solve for x
    x = 340,585,307,027.91/685,669.19
  6. Step 6: Final answer
    x = 496,719.57

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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.