Home / 859,920.39-1,289,909.70-228,834.81

Finding the Fourth Proportional to 859,920.39, 1,289,909.70 and 228,834.81

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Solution

The fourth proportional to 859,920.39, 1,289,909.70 and 228,834.81 is: 343,259.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,920.39 : 1,289,909.70 = 228,834.81 : x
  2. Step 2: Convert to fraction form
    859,920.39/1,289,909.70 = 228,834.81/x
  3. Step 3: Cross multiply
    859,920.39x = 1,289,909.70 × 228,834.81
  4. Step 4: Simplify right side
    859,920.39x = 295,176,241,116.66
  5. Step 5: Solve for x
    x = 295,176,241,116.66/859,920.39
  6. Step 6: Final answer
    x = 343,259.96

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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.