Home / 921,710.88-1,381,616.33-352,936.58

Finding the Fourth Proportional to 921,710.88, 1,381,616.33 and 352,936.58

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Solution

The fourth proportional to 921,710.88, 1,381,616.33 and 352,936.58 is: 529,041.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,710.88 : 1,381,616.33 = 352,936.58 : x
  2. Step 2: Convert to fraction form
    921,710.88/1,381,616.33 = 352,936.58/x
  3. Step 3: Cross multiply
    921,710.88x = 1,381,616.33 × 352,936.58
  4. Step 4: Simplify right side
    921,710.88x = 487,622,933,709.59
  5. Step 5: Solve for x
    x = 487,622,933,709.59/921,710.88
  6. Step 6: Final answer
    x = 529,041.10

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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.