Home / 686,008.38-1,029,363.57-326,585.46

Finding the Fourth Proportional to 686,008.38, 1,029,363.57 and 326,585.46

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Solution

The fourth proportional to 686,008.38, 1,029,363.57 and 326,585.46 is: 490,045.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,008.38 : 1,029,363.57 = 326,585.46 : x
  2. Step 2: Convert to fraction form
    686,008.38/1,029,363.57 = 326,585.46/x
  3. Step 3: Cross multiply
    686,008.38x = 1,029,363.57 × 326,585.46
  4. Step 4: Simplify right side
    686,008.38x = 336,175,175,015.69
  5. Step 5: Solve for x
    x = 336,175,175,015.69/686,008.38
  6. Step 6: Final answer
    x = 490,045.29

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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.