Home / 3,145,678.79-4,340,995.31-1,769,022.09

Finding the Fourth Proportional to 3,145,678.79, 4,340,995.31 and 1,769,022.09

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Solution

The fourth proportional to 3,145,678.79, 4,340,995.31 and 1,769,022.09 is: 2,441,227.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,145,678.79 : 4,340,995.31 = 1,769,022.09 : x
  2. Step 2: Convert to fraction form
    3,145,678.79/4,340,995.31 = 1,769,022.09/x
  3. Step 3: Cross multiply
    3,145,678.79x = 4,340,995.31 × 1,769,022.09
  4. Step 4: Simplify right side
    3,145,678.79x = 7,679,316,587,131.29
  5. Step 5: Solve for x
    x = 7,679,316,587,131.29/3,145,678.79
  6. Step 6: Final answer
    x = 2,441,227.19

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1.5x scale

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.