Home / 771,020.76-1,155,907.62-322,085.46

Finding the Fourth Proportional to 771,020.76, 1,155,907.62 and 322,085.46

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Solution

The fourth proportional to 771,020.76, 1,155,907.62 and 322,085.46 is: 482,867.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,020.76 : 1,155,907.62 = 322,085.46 : x
  2. Step 2: Convert to fraction form
    771,020.76/1,155,907.62 = 322,085.46/x
  3. Step 3: Cross multiply
    771,020.76x = 1,155,907.62 × 322,085.46
  4. Step 4: Simplify right side
    771,020.76x = 372,301,037,505.21
  5. Step 5: Solve for x
    x = 372,301,037,505.21/771,020.76
  6. Step 6: Final answer
    x = 482,867.72

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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.