Home / 1,821,622-2,513,807.24-1,005,805.36

Finding the Fourth Proportional to 1,821,622, 2,513,807.24 and 1,005,805.36

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Solution

The fourth proportional to 1,821,622, 2,513,807.24 and 1,005,805.36 is: 1,387,994.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,622 : 2,513,807.24 = 1,005,805.36 : x
  2. Step 2: Convert to fraction form
    1,821,622/2,513,807.24 = 1,005,805.36/x
  3. Step 3: Cross multiply
    1,821,622x = 2,513,807.24 × 1,005,805.36
  4. Step 4: Simplify right side
    1,821,622x = 2,528,400,795,998.81
  5. Step 5: Solve for x
    x = 2,528,400,795,998.81/1,821,622
  6. Step 6: Final answer
    x = 1,387,994.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.