Home / 1,891,412.39-2,837,950.32-992,643.55

Finding the Fourth Proportional to 1,891,412.39, 2,837,950.32 and 992,643.55

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Solution

The fourth proportional to 1,891,412.39, 2,837,950.32 and 992,643.55 is: 1,489,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,412.39 : 2,837,950.32 = 992,643.55 : x
  2. Step 2: Convert to fraction form
    1,891,412.39/2,837,950.32 = 992,643.55/x
  3. Step 3: Cross multiply
    1,891,412.39x = 2,837,950.32 × 992,643.55
  4. Step 4: Simplify right side
    1,891,412.39x = 2,817,073,076,995.97
  5. Step 5: Solve for x
    x = 2,817,073,076,995.97/1,891,412.39
  6. Step 6: Final answer
    x = 1,489,401.83

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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.