Home / 687,637.62-1,031,222.85-238,253.60

Finding the Fourth Proportional to 687,637.62, 1,031,222.85 and 238,253.60

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Solution

The fourth proportional to 687,637.62, 1,031,222.85 and 238,253.60 is: 357,299.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,637.62 : 1,031,222.85 = 238,253.60 : x
  2. Step 2: Convert to fraction form
    687,637.62/1,031,222.85 = 238,253.60/x
  3. Step 3: Cross multiply
    687,637.62x = 1,031,222.85 × 238,253.60
  4. Step 4: Simplify right side
    687,637.62x = 245,692,556,414.76
  5. Step 5: Solve for x
    x = 245,692,556,414.76/687,637.62
  6. Step 6: Final answer
    x = 357,299.47

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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.