Home / 790,815.91-1,185,978.52-285,311.17

Finding the Fourth Proportional to 790,815.91, 1,185,978.52 and 285,311.17

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Solution

The fourth proportional to 790,815.91, 1,185,978.52 and 285,311.17 is: 427,878.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,815.91 : 1,185,978.52 = 285,311.17 : x
  2. Step 2: Convert to fraction form
    790,815.91/1,185,978.52 = 285,311.17/x
  3. Step 3: Cross multiply
    790,815.91x = 1,185,978.52 × 285,311.17
  4. Step 4: Simplify right side
    790,815.91x = 338,372,919,136.07
  5. Step 5: Solve for x
    x = 338,372,919,136.07/790,815.91
  6. Step 6: Final answer
    x = 427,878.24

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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.