Home / 459,910.57-689,866.04-206,895.53

Finding the Fourth Proportional to 459,910.57, 689,866.04 and 206,895.53

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Solution

The fourth proportional to 459,910.57, 689,866.04 and 206,895.53 is: 310,343.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,910.57 : 689,866.04 = 206,895.53 : x
  2. Step 2: Convert to fraction form
    459,910.57/689,866.04 = 206,895.53/x
  3. Step 3: Cross multiply
    459,910.57x = 689,866.04 × 206,895.53
  4. Step 4: Simplify right side
    459,910.57x = 142,730,199,974.80
  5. Step 5: Solve for x
    x = 142,730,199,974.80/459,910.57
  6. Step 6: Final answer
    x = 310,343.38

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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.