Home / 513,392.72-769,447.20-247,081.76

Finding the Fourth Proportional to 513,392.72, 769,447.20 and 247,081.76

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Solution

The fourth proportional to 513,392.72, 769,447.20 and 247,081.76 is: 370,313.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,392.72 : 769,447.20 = 247,081.76 : x
  2. Step 2: Convert to fraction form
    513,392.72/769,447.20 = 247,081.76/x
  3. Step 3: Cross multiply
    513,392.72x = 769,447.20 × 247,081.76
  4. Step 4: Simplify right side
    513,392.72x = 190,116,368,403.07
  5. Step 5: Solve for x
    x = 190,116,368,403.07/513,392.72
  6. Step 6: Final answer
    x = 370,313.72

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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.