Home / 689,679.38-1,033,848.08-329,756.70

Finding the Fourth Proportional to 689,679.38, 1,033,848.08 and 329,756.70

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Solution

The fourth proportional to 689,679.38, 1,033,848.08 and 329,756.70 is: 494,314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,679.38 : 1,033,848.08 = 329,756.70 : x
  2. Step 2: Convert to fraction form
    689,679.38/1,033,848.08 = 329,756.70/x
  3. Step 3: Cross multiply
    689,679.38x = 1,033,848.08 × 329,756.70
  4. Step 4: Simplify right side
    689,679.38x = 340,918,331,162.14
  5. Step 5: Solve for x
    x = 340,918,331,162.14/689,679.38
  6. Step 6: Final answer
    x = 494,314.23

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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.