Home / 628,170.65-867,029.46-356,397.62

Finding the Fourth Proportional to 628,170.65, 867,029.46 and 356,397.62

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Solution

The fourth proportional to 628,170.65, 867,029.46 and 356,397.62 is: 491,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,170.65 : 867,029.46 = 356,397.62 : x
  2. Step 2: Convert to fraction form
    628,170.65/867,029.46 = 356,397.62/x
  3. Step 3: Cross multiply
    628,170.65x = 867,029.46 × 356,397.62
  4. Step 4: Simplify right side
    628,170.65x = 309,007,238,181.46
  5. Step 5: Solve for x
    x = 309,007,238,181.46/628,170.65
  6. Step 6: Final answer
    x = 491,916.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.