Home / 778,276.80-1,165,082.40-684,964.80

Finding the Fourth Proportional to 778,276.80, 1,165,082.40 and 684,964.80

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Solution

The fourth proportional to 778,276.80, 1,165,082.40 and 684,964.80 is: 1,025,394.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,276.80 : 1,165,082.40 = 684,964.80 : x
  2. Step 2: Convert to fraction form
    778,276.80/1,165,082.40 = 684,964.80/x
  3. Step 3: Cross multiply
    778,276.80x = 1,165,082.40 × 684,964.80
  4. Step 4: Simplify right side
    778,276.80x = 798,040,433,099.52
  5. Step 5: Solve for x
    x = 798,040,433,099.52/778,276.80
  6. Step 6: Final answer
    x = 1,025,394.09

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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.