Home / 1,811,169.81-2,499,312.65-1,085,654.43

Finding the Fourth Proportional to 1,811,169.81, 2,499,312.65 and 1,085,654.43

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Solution

The fourth proportional to 1,811,169.81, 2,499,312.65 and 1,085,654.43 is: 1,498,142.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811,169.81 : 2,499,312.65 = 1,085,654.43 : x
  2. Step 2: Convert to fraction form
    1,811,169.81/2,499,312.65 = 1,085,654.43/x
  3. Step 3: Cross multiply
    1,811,169.81x = 2,499,312.65 × 1,085,654.43
  4. Step 4: Simplify right side
    1,811,169.81x = 2,713,389,844,999.27
  5. Step 5: Solve for x
    x = 2,713,389,844,999.27/1,811,169.81
  6. Step 6: Final answer
    x = 1,498,142.16

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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.