Home / 688,049.13-1,031,664.90-261,616.14

Finding the Fourth Proportional to 688,049.13, 1,031,664.90 and 261,616.14

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Solution

The fourth proportional to 688,049.13, 1,031,664.90 and 261,616.14 is: 392,268.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,049.13 : 1,031,664.90 = 261,616.14 : x
  2. Step 2: Convert to fraction form
    688,049.13/1,031,664.90 = 261,616.14/x
  3. Step 3: Cross multiply
    688,049.13x = 1,031,664.90 × 261,616.14
  4. Step 4: Simplify right side
    688,049.13x = 269,900,188,911.49
  5. Step 5: Solve for x
    x = 269,900,188,911.49/688,049.13
  6. Step 6: Final answer
    x = 392,268.77

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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.