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Finding the Fourth Proportional to 718,710.17, 1,077,832.02 and 238,809.09

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Solution

The fourth proportional to 718,710.17, 1,077,832.02 and 238,809.09 is: 358,136.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,710.17 : 1,077,832.02 = 238,809.09 : x
  2. Step 2: Convert to fraction form
    718,710.17/1,077,832.02 = 238,809.09/x
  3. Step 3: Cross multiply
    718,710.17x = 1,077,832.02 × 238,809.09
  4. Step 4: Simplify right side
    718,710.17x = 257,396,083,869.06
  5. Step 5: Solve for x
    x = 257,396,083,869.06/718,710.17
  6. Step 6: Final answer
    x = 358,136.14

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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.