Home / 790,815.66-1,185,978.15-285,310.92

Finding the Fourth Proportional to 790,815.66, 1,185,978.15 and 285,310.92

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Solution

The fourth proportional to 790,815.66, 1,185,978.15 and 285,310.92 is: 427,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,815.66 : 1,185,978.15 = 285,310.92 : x
  2. Step 2: Convert to fraction form
    790,815.66/1,185,978.15 = 285,310.92/x
  3. Step 3: Cross multiply
    790,815.66x = 1,185,978.15 × 285,310.92
  4. Step 4: Simplify right side
    790,815.66x = 338,372,516,006.48
  5. Step 5: Solve for x
    x = 338,372,516,006.48/790,815.66
  6. Step 6: Final answer
    x = 427,877.87

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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.