Home / 679,463.52-1,018,447.95-279,886.37

Finding the Fourth Proportional to 679,463.52, 1,018,447.95 and 279,886.37

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Solution

The fourth proportional to 679,463.52, 1,018,447.95 and 279,886.37 is: 419,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,463.52 : 1,018,447.95 = 279,886.37 : x
  2. Step 2: Convert to fraction form
    679,463.52/1,018,447.95 = 279,886.37/x
  3. Step 3: Cross multiply
    679,463.52x = 1,018,447.95 × 279,886.37
  4. Step 4: Simplify right side
    679,463.52x = 285,049,694,667.20
  5. Step 5: Solve for x
    x = 285,049,694,667.20/679,463.52
  6. Step 6: Final answer
    x = 419,521.71

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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.