Home / 787,902.13-1,182,222.25-388,325.08

Finding the Fourth Proportional to 787,902.13, 1,182,222.25 and 388,325.08

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Solution

The fourth proportional to 787,902.13, 1,182,222.25 and 388,325.08 is: 582,669.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,902.13 : 1,182,222.25 = 388,325.08 : x
  2. Step 2: Convert to fraction form
    787,902.13/1,182,222.25 = 388,325.08/x
  3. Step 3: Cross multiply
    787,902.13x = 1,182,222.25 × 388,325.08
  4. Step 4: Simplify right side
    787,902.13x = 459,086,545,882.66
  5. Step 5: Solve for x
    x = 459,086,545,882.66/787,902.13
  6. Step 6: Final answer
    x = 582,669.51

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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.