Home / 687,801.82-1,031,715.06-238,538.56

Finding the Fourth Proportional to 687,801.82, 1,031,715.06 and 238,538.56

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Solution

The fourth proportional to 687,801.82, 1,031,715.06 and 238,538.56 is: 357,812.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,801.82 : 1,031,715.06 = 238,538.56 : x
  2. Step 2: Convert to fraction form
    687,801.82/1,031,715.06 = 238,538.56/x
  3. Step 3: Cross multiply
    687,801.82x = 1,031,715.06 × 238,538.56
  4. Step 4: Simplify right side
    687,801.82x = 246,103,824,742.71
  5. Step 5: Solve for x
    x = 246,103,824,742.71/687,801.82
  6. Step 6: Final answer
    x = 357,812.12

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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.