Home / 709,372.81-1,064,029.45-330,163.11

Finding the Fourth Proportional to 709,372.81, 1,064,029.45 and 330,163.11

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Solution

The fourth proportional to 709,372.81, 1,064,029.45 and 330,163.11 is: 495,230.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,372.81 : 1,064,029.45 = 330,163.11 : x
  2. Step 2: Convert to fraction form
    709,372.81/1,064,029.45 = 330,163.11/x
  3. Step 3: Cross multiply
    709,372.81x = 1,064,029.45 × 330,163.11
  4. Step 4: Simplify right side
    709,372.81x = 351,303,272,343.59
  5. Step 5: Solve for x
    x = 351,303,272,343.59/709,372.81
  6. Step 6: Final answer
    x = 495,230.81

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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.