Home / 689,889.51-1,034,791.07-257,522.61

Finding the Fourth Proportional to 689,889.51, 1,034,791.07 and 257,522.61

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Solution

The fourth proportional to 689,889.51, 1,034,791.07 and 257,522.61 is: 386,267.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,889.51 : 1,034,791.07 = 257,522.61 : x
  2. Step 2: Convert to fraction form
    689,889.51/1,034,791.07 = 257,522.61/x
  3. Step 3: Cross multiply
    689,889.51x = 1,034,791.07 × 257,522.61
  4. Step 4: Simplify right side
    689,889.51x = 266,482,095,863.48
  5. Step 5: Solve for x
    x = 266,482,095,863.48/689,889.51
  6. Step 6: Final answer
    x = 386,267.79

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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.