Home / 771,288.19-1,156,743.48-322,012.78

Finding the Fourth Proportional to 771,288.19, 1,156,743.48 and 322,012.78

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Solution

The fourth proportional to 771,288.19, 1,156,743.48 and 322,012.78 is: 482,940.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,288.19 : 1,156,743.48 = 322,012.78 : x
  2. Step 2: Convert to fraction form
    771,288.19/1,156,743.48 = 322,012.78/x
  3. Step 3: Cross multiply
    771,288.19x = 1,156,743.48 × 322,012.78
  4. Step 4: Simplify right side
    771,288.19x = 372,486,183,741.67
  5. Step 5: Solve for x
    x = 372,486,183,741.67/771,288.19
  6. Step 6: Final answer
    x = 482,940.34

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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.