Home / 3,188,857.52-4,781,878.95-913,865.60

Finding the Fourth Proportional to 3,188,857.52, 4,781,878.95 and 913,865.60

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Solution

The fourth proportional to 3,188,857.52, 4,781,878.95 and 913,865.60 is: 1,370,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188,857.52 : 4,781,878.95 = 913,865.60 : x
  2. Step 2: Convert to fraction form
    3,188,857.52/4,781,878.95 = 913,865.60/x
  3. Step 3: Cross multiply
    3,188,857.52x = 4,781,878.95 × 913,865.60
  4. Step 4: Simplify right side
    3,188,857.52x = 4,369,994,675,769.12
  5. Step 5: Solve for x
    x = 4,369,994,675,769.12/3,188,857.52
  6. Step 6: Final answer
    x = 1,370,395.09

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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.