Home / 787,110.60-1,180,277.67-331,618.65

Finding the Fourth Proportional to 787,110.60, 1,180,277.67 and 331,618.65

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Solution

The fourth proportional to 787,110.60, 1,180,277.67 and 331,618.65 is: 497,264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,110.60 : 1,180,277.67 = 331,618.65 : x
  2. Step 2: Convert to fraction form
    787,110.60/1,180,277.67 = 331,618.65/x
  3. Step 3: Cross multiply
    787,110.60x = 1,180,277.67 × 331,618.65
  4. Step 4: Simplify right side
    787,110.60x = 391,402,087,550.55
  5. Step 5: Solve for x
    x = 391,402,087,550.55/787,110.60
  6. Step 6: Final answer
    x = 497,264.41

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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.