Home / 687,927.68-1,031,493-266,710.40

Finding the Fourth Proportional to 687,927.68, 1,031,493 and 266,710.40

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Solution

The fourth proportional to 687,927.68, 1,031,493 and 266,710.40 is: 399,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,927.68 : 1,031,493 = 266,710.40 : x
  2. Step 2: Convert to fraction form
    687,927.68/1,031,493 = 266,710.40/x
  3. Step 3: Cross multiply
    687,927.68x = 1,031,493 × 266,710.40
  4. Step 4: Simplify right side
    687,927.68x = 275,109,910,627.20
  5. Step 5: Solve for x
    x = 275,109,910,627.20/687,927.68
  6. Step 6: Final answer
    x = 399,911.09

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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.