Home / 1,212,179.89-1,818,278.95-538,079.97

Finding the Fourth Proportional to 1,212,179.89, 1,818,278.95 and 538,079.97

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Solution

The fourth proportional to 1,212,179.89, 1,818,278.95 and 538,079.97 is: 807,124.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,179.89 : 1,818,278.95 = 538,079.97 : x
  2. Step 2: Convert to fraction form
    1,212,179.89/1,818,278.95 = 538,079.97/x
  3. Step 3: Cross multiply
    1,212,179.89x = 1,818,278.95 × 538,079.97
  4. Step 4: Simplify right side
    1,212,179.89x = 978,379,482,867.63
  5. Step 5: Solve for x
    x = 978,379,482,867.63/1,212,179.89
  6. Step 6: Final answer
    x = 807,124.00

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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.