Home / 1,215,903.29-1,823,949.09-406,290.51

Finding the Fourth Proportional to 1,215,903.29, 1,823,949.09 and 406,290.51

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Solution

The fourth proportional to 1,215,903.29, 1,823,949.09 and 406,290.51 is: 609,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,903.29 : 1,823,949.09 = 406,290.51 : x
  2. Step 2: Convert to fraction form
    1,215,903.29/1,823,949.09 = 406,290.51/x
  3. Step 3: Cross multiply
    1,215,903.29x = 1,823,949.09 × 406,290.51
  4. Step 4: Simplify right side
    1,215,903.29x = 741,053,196,870.39
  5. Step 5: Solve for x
    x = 741,053,196,870.39/1,215,903.29
  6. Step 6: Final answer
    x = 609,467.22

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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.