Home / 2,580,739.49-3,870,859.07-783,638.75

Finding the Fourth Proportional to 2,580,739.49, 3,870,859.07 and 783,638.75

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Solution

The fourth proportional to 2,580,739.49, 3,870,859.07 and 783,638.75 is: 1,175,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580,739.49 : 3,870,859.07 = 783,638.75 : x
  2. Step 2: Convert to fraction form
    2,580,739.49/3,870,859.07 = 783,638.75/x
  3. Step 3: Cross multiply
    2,580,739.49x = 3,870,859.07 × 783,638.75
  4. Step 4: Simplify right side
    2,580,739.49x = 3,033,355,139,768.47
  5. Step 5: Solve for x
    x = 3,033,355,139,768.47/2,580,739.49
  6. Step 6: Final answer
    x = 1,175,382.16

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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.