Home / 2,590,845.80-3,886,268.70-817,687.40

Finding the Fourth Proportional to 2,590,845.80, 3,886,268.70 and 817,687.40

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Solution

The fourth proportional to 2,590,845.80, 3,886,268.70 and 817,687.40 is: 1,226,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,845.80 : 3,886,268.70 = 817,687.40 : x
  2. Step 2: Convert to fraction form
    2,590,845.80/3,886,268.70 = 817,687.40/x
  3. Step 3: Cross multiply
    2,590,845.80x = 3,886,268.70 × 817,687.40
  4. Step 4: Simplify right side
    2,590,845.80x = 3,177,752,949,004.38
  5. Step 5: Solve for x
    x = 3,177,752,949,004.38/2,590,845.80
  6. Step 6: Final answer
    x = 1,226,531.10

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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.