Home / 688,040.91-1,031,652.55-261,607.91

Finding the Fourth Proportional to 688,040.91, 1,031,652.55 and 261,607.91

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Solution

The fourth proportional to 688,040.91, 1,031,652.55 and 261,607.91 is: 392,256.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,040.91 : 1,031,652.55 = 261,607.91 : x
  2. Step 2: Convert to fraction form
    688,040.91/1,031,652.55 = 261,607.91/x
  3. Step 3: Cross multiply
    688,040.91x = 1,031,652.55 × 261,607.91
  4. Step 4: Simplify right side
    688,040.91x = 269,888,472,775.75
  5. Step 5: Solve for x
    x = 269,888,472,775.75/688,040.91
  6. Step 6: Final answer
    x = 392,256.43

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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.