Home / 638,718.10-958,039.54-239,325.44

Finding the Fourth Proportional to 638,718.10, 958,039.54 and 239,325.44

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Solution

The fourth proportional to 638,718.10, 958,039.54 and 239,325.44 is: 358,974.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,718.10 : 958,039.54 = 239,325.44 : x
  2. Step 2: Convert to fraction form
    638,718.10/958,039.54 = 239,325.44/x
  3. Step 3: Cross multiply
    638,718.10x = 958,039.54 × 239,325.44
  4. Step 4: Simplify right side
    638,718.10x = 229,283,229,059.39
  5. Step 5: Solve for x
    x = 229,283,229,059.39/638,718.10
  6. Step 6: Final answer
    x = 358,974.06

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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.