Home / 1,212,575.18-1,818,362.32-413,921.12

Finding the Fourth Proportional to 1,212,575.18, 1,818,362.32 and 413,921.12

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Solution

The fourth proportional to 1,212,575.18, 1,818,362.32 and 413,921.12 is: 620,710.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,575.18 : 1,818,362.32 = 413,921.12 : x
  2. Step 2: Convert to fraction form
    1,212,575.18/1,818,362.32 = 413,921.12/x
  3. Step 3: Cross multiply
    1,212,575.18x = 1,818,362.32 × 413,921.12
  4. Step 4: Simplify right side
    1,212,575.18x = 752,658,557,933.58
  5. Step 5: Solve for x
    x = 752,658,557,933.58/1,212,575.18
  6. Step 6: Final answer
    x = 620,710.84

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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.