Home / 459,909.07-689,863.79-206,894.03

Finding the Fourth Proportional to 459,909.07, 689,863.79 and 206,894.03

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Solution

The fourth proportional to 459,909.07, 689,863.79 and 206,894.03 is: 310,341.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,909.07 : 689,863.79 = 206,894.03 : x
  2. Step 2: Convert to fraction form
    459,909.07/689,863.79 = 206,894.03/x
  3. Step 3: Cross multiply
    459,909.07x = 689,863.79 × 206,894.03
  4. Step 4: Simplify right side
    459,909.07x = 142,728,696,732.09
  5. Step 5: Solve for x
    x = 142,728,696,732.09/459,909.07
  6. Step 6: Final answer
    x = 310,341.12

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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.