Home / 3,420,069.15-4,719,280.55-1,970,233.95

Finding the Fourth Proportional to 3,420,069.15, 4,719,280.55 and 1,970,233.95

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Solution

The fourth proportional to 3,420,069.15, 4,719,280.55 and 1,970,233.95 is: 2,718,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420,069.15 : 4,719,280.55 = 1,970,233.95 : x
  2. Step 2: Convert to fraction form
    3,420,069.15/4,719,280.55 = 1,970,233.95/x
  3. Step 3: Cross multiply
    3,420,069.15x = 4,719,280.55 × 1,970,233.95
  4. Step 4: Simplify right side
    3,420,069.15x = 9,298,086,749,333.50
  5. Step 5: Solve for x
    x = 9,298,086,749,333.50/3,420,069.15
  6. Step 6: Final answer
    x = 2,718,683.85

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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.