Home / 782,129.51-1,172,728.33-242,225.85

Finding the Fourth Proportional to 782,129.51, 1,172,728.33 and 242,225.85

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Solution

The fourth proportional to 782,129.51, 1,172,728.33 and 242,225.85 is: 363,194.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,129.51 : 1,172,728.33 = 242,225.85 : x
  2. Step 2: Convert to fraction form
    782,129.51/1,172,728.33 = 242,225.85/x
  3. Step 3: Cross multiply
    782,129.51x = 1,172,728.33 × 242,225.85
  4. Step 4: Simplify right side
    782,129.51x = 284,065,109,478.56
  5. Step 5: Solve for x
    x = 284,065,109,478.56/782,129.51
  6. Step 6: Final answer
    x = 363,194.47

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Double scale
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1.5x scale

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.