Home / 429,003.09-643,674.12-162,834.26

Finding the Fourth Proportional to 429,003.09, 643,674.12 and 162,834.26

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Solution

The fourth proportional to 429,003.09, 643,674.12 and 162,834.26 is: 244,315.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,003.09 : 643,674.12 = 162,834.26 : x
  2. Step 2: Convert to fraction form
    429,003.09/643,674.12 = 162,834.26/x
  3. Step 3: Cross multiply
    429,003.09x = 643,674.12 × 162,834.26
  4. Step 4: Simplify right side
    429,003.09x = 104,812,195,792.98
  5. Step 5: Solve for x
    x = 104,812,195,792.98/429,003.09
  6. Step 6: Final answer
    x = 244,315.71

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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.