Home / 1,821,321.45-2,513,357.81-1,005,507.88

Finding the Fourth Proportional to 1,821,321.45, 2,513,357.81 and 1,005,507.88

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Solution

The fourth proportional to 1,821,321.45, 2,513,357.81 and 1,005,507.88 is: 1,387,564.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,321.45 : 2,513,357.81 = 1,005,507.88 : x
  2. Step 2: Convert to fraction form
    1,821,321.45/2,513,357.81 = 1,005,507.88/x
  3. Step 3: Cross multiply
    1,821,321.45x = 2,513,357.81 × 1,005,507.88
  4. Step 4: Simplify right side
    1,821,321.45x = 2,527,201,075,674.26
  5. Step 5: Solve for x
    x = 2,527,201,075,674.26/1,821,321.45
  6. Step 6: Final answer
    x = 1,387,564.55

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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.