Home / 687,799.68-1,031,763.84-238,450.56

Finding the Fourth Proportional to 687,799.68, 1,031,763.84 and 238,450.56

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Solution

The fourth proportional to 687,799.68, 1,031,763.84 and 238,450.56 is: 357,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,799.68 : 1,031,763.84 = 238,450.56 : x
  2. Step 2: Convert to fraction form
    687,799.68/1,031,763.84 = 238,450.56/x
  3. Step 3: Cross multiply
    687,799.68x = 1,031,763.84 × 238,450.56
  4. Step 4: Simplify right side
    687,799.68x = 246,024,665,435.75
  5. Step 5: Solve for x
    x = 246,024,665,435.75/687,799.68
  6. Step 6: Final answer
    x = 357,698.14

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1.5x scale

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.