Home / 709,357.30-1,064,133.15-259,969.30

Finding the Fourth Proportional to 709,357.30, 1,064,133.15 and 259,969.30

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Solution

The fourth proportional to 709,357.30, 1,064,133.15 and 259,969.30 is: 389,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,357.30 : 1,064,133.15 = 259,969.30 : x
  2. Step 2: Convert to fraction form
    709,357.30/1,064,133.15 = 259,969.30/x
  3. Step 3: Cross multiply
    709,357.30x = 1,064,133.15 × 259,969.30
  4. Step 4: Simplify right side
    709,357.30x = 276,641,950,112.30
  5. Step 5: Solve for x
    x = 276,641,950,112.30/709,357.30
  6. Step 6: Final answer
    x = 389,989.57

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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.