Home / 1,276,993.59-1,915,490.38-1,213,138.65

Finding the Fourth Proportional to 1,276,993.59, 1,915,490.38 and 1,213,138.65

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Solution

The fourth proportional to 1,276,993.59, 1,915,490.38 and 1,213,138.65 is: 1,819,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,993.59 : 1,915,490.38 = 1,213,138.65 : x
  2. Step 2: Convert to fraction form
    1,276,993.59/1,915,490.38 = 1,213,138.65/x
  3. Step 3: Cross multiply
    1,276,993.59x = 1,915,490.38 × 1,213,138.65
  4. Step 4: Simplify right side
    1,276,993.59x = 2,323,755,413,681.19
  5. Step 5: Solve for x
    x = 2,323,755,413,681.19/1,276,993.59
  6. Step 6: Final answer
    x = 1,819,707.97

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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.