Home / 790,822.35-1,185,988.15-285,317.59

Finding the Fourth Proportional to 790,822.35, 1,185,988.15 and 285,317.59

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Solution

The fourth proportional to 790,822.35, 1,185,988.15 and 285,317.59 is: 427,887.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,822.35 : 1,185,988.15 = 285,317.59 : x
  2. Step 2: Convert to fraction form
    790,822.35/1,185,988.15 = 285,317.59/x
  3. Step 3: Cross multiply
    790,822.35x = 1,185,988.15 × 285,317.59
  4. Step 4: Simplify right side
    790,822.35x = 338,383,280,726.56
  5. Step 5: Solve for x
    x = 338,383,280,726.56/790,822.35
  6. Step 6: Final answer
    x = 427,887.86

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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.