Home / 1,191,632.25-1,787,558.52-338,721.69

Finding the Fourth Proportional to 1,191,632.25, 1,787,558.52 and 338,721.69

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Solution

The fourth proportional to 1,191,632.25, 1,787,558.52 and 338,721.69 is: 508,113.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,632.25 : 1,787,558.52 = 338,721.69 : x
  2. Step 2: Convert to fraction form
    1,191,632.25/1,787,558.52 = 338,721.69/x
  3. Step 3: Cross multiply
    1,191,632.25x = 1,787,558.52 × 338,721.69
  4. Step 4: Simplify right side
    1,191,632.25x = 605,484,842,868.30
  5. Step 5: Solve for x
    x = 605,484,842,868.30/1,191,632.25
  6. Step 6: Final answer
    x = 508,113.84

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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.