Home / 860,936.33-1,189,730.75-645,702.73

Finding the Fourth Proportional to 860,936.33, 1,189,730.75 and 645,702.73

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Solution

The fourth proportional to 860,936.33, 1,189,730.75 and 645,702.73 is: 892,298.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,936.33 : 1,189,730.75 = 645,702.73 : x
  2. Step 2: Convert to fraction form
    860,936.33/1,189,730.75 = 645,702.73/x
  3. Step 3: Cross multiply
    860,936.33x = 1,189,730.75 × 645,702.73
  4. Step 4: Simplify right side
    860,936.33x = 768,212,393,239.95
  5. Step 5: Solve for x
    x = 768,212,393,239.95/860,936.33
  6. Step 6: Final answer
    x = 892,298.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.