Home / 774,909.12-1,162,362.06-213,942

Finding the Fourth Proportional to 774,909.12, 1,162,362.06 and 213,942

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Solution

The fourth proportional to 774,909.12, 1,162,362.06 and 213,942 is: 320,912.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,909.12 : 1,162,362.06 = 213,942 : x
  2. Step 2: Convert to fraction form
    774,909.12/1,162,362.06 = 213,942/x
  3. Step 3: Cross multiply
    774,909.12x = 1,162,362.06 × 213,942
  4. Step 4: Simplify right side
    774,909.12x = 248,678,063,840.52
  5. Step 5: Solve for x
    x = 248,678,063,840.52/774,909.12
  6. Step 6: Final answer
    x = 320,912.55

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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.