Home / 2,916,619.20-4,374,928.80-786,918.60

Finding the Fourth Proportional to 2,916,619.20, 4,374,928.80 and 786,918.60

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Solution

The fourth proportional to 2,916,619.20, 4,374,928.80 and 786,918.60 is: 1,180,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916,619.20 : 4,374,928.80 = 786,918.60 : x
  2. Step 2: Convert to fraction form
    2,916,619.20/4,374,928.80 = 786,918.60/x
  3. Step 3: Cross multiply
    2,916,619.20x = 4,374,928.80 × 786,918.60
  4. Step 4: Simplify right side
    2,916,619.20x = 3,442,712,846,395.68
  5. Step 5: Solve for x
    x = 3,442,712,846,395.68/2,916,619.20
  6. Step 6: Final answer
    x = 1,180,377.90

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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.