Home / 693,078.36-1,039,616.83-260,876.53

Finding the Fourth Proportional to 693,078.36, 1,039,616.83 and 260,876.53

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Solution

The fourth proportional to 693,078.36, 1,039,616.83 and 260,876.53 is: 391,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,078.36 : 1,039,616.83 = 260,876.53 : x
  2. Step 2: Convert to fraction form
    693,078.36/1,039,616.83 = 260,876.53/x
  3. Step 3: Cross multiply
    693,078.36x = 1,039,616.83 × 260,876.53
  4. Step 4: Simplify right side
    693,078.36x = 271,211,631,140.00
  5. Step 5: Solve for x
    x = 271,211,631,140.00/693,078.36
  6. Step 6: Final answer
    x = 391,314.53

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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.