Home / 679,468.07-1,018,454.73-279,890.84

Finding the Fourth Proportional to 679,468.07, 1,018,454.73 and 279,890.84

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Solution

The fourth proportional to 679,468.07, 1,018,454.73 and 279,890.84 is: 419,528.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,468.07 : 1,018,454.73 = 279,890.84 : x
  2. Step 2: Convert to fraction form
    679,468.07/1,018,454.73 = 279,890.84/x
  3. Step 3: Cross multiply
    679,468.07x = 1,018,454.73 × 279,890.84
  4. Step 4: Simplify right side
    679,468.07x = 285,056,144,789.40
  5. Step 5: Solve for x
    x = 285,056,144,789.40/679,468.07
  6. Step 6: Final answer
    x = 419,528.39

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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.