Home / 805,355.12-1,208,004.91-206,322.17

Finding the Fourth Proportional to 805,355.12, 1,208,004.91 and 206,322.17

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Solution

The fourth proportional to 805,355.12, 1,208,004.91 and 206,322.17 is: 309,476.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,355.12 : 1,208,004.91 = 206,322.17 : x
  2. Step 2: Convert to fraction form
    805,355.12/1,208,004.91 = 206,322.17/x
  3. Step 3: Cross multiply
    805,355.12x = 1,208,004.91 × 206,322.17
  4. Step 4: Simplify right side
    805,355.12x = 249,238,187,846.03
  5. Step 5: Solve for x
    x = 249,238,187,846.03/805,355.12
  6. Step 6: Final answer
    x = 309,476.13

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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.