Home / 903,932.40-1,247,441.28-521,992.56

Finding the Fourth Proportional to 903,932.40, 1,247,441.28 and 521,992.56

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Solution

The fourth proportional to 903,932.40, 1,247,441.28 and 521,992.56 is: 720,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,932.40 : 1,247,441.28 = 521,992.56 : x
  2. Step 2: Convert to fraction form
    903,932.40/1,247,441.28 = 521,992.56/x
  3. Step 3: Cross multiply
    903,932.40x = 1,247,441.28 × 521,992.56
  4. Step 4: Simplify right side
    903,932.40x = 651,155,067,196.88
  5. Step 5: Solve for x
    x = 651,155,067,196.88/903,932.40
  6. Step 6: Final answer
    x = 720,358.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.