Home / 1,222,964.73-1,687,798.28-679,206.83

Finding the Fourth Proportional to 1,222,964.73, 1,687,798.28 and 679,206.83

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Solution

The fourth proportional to 1,222,964.73, 1,687,798.28 and 679,206.83 is: 937,364.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,964.73 : 1,687,798.28 = 679,206.83 : x
  2. Step 2: Convert to fraction form
    1,222,964.73/1,687,798.28 = 679,206.83/x
  3. Step 3: Cross multiply
    1,222,964.73x = 1,687,798.28 × 679,206.83
  4. Step 4: Simplify right side
    1,222,964.73x = 1,146,364,119,438.25
  5. Step 5: Solve for x
    x = 1,146,364,119,438.25/1,222,964.73
  6. Step 6: Final answer
    x = 937,364.82

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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.