Home / 772,234.25-1,065,639.71-449,996.81

Finding the Fourth Proportional to 772,234.25, 1,065,639.71 and 449,996.81

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Solution

The fourth proportional to 772,234.25, 1,065,639.71 and 449,996.81 is: 620,970.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,234.25 : 1,065,639.71 = 449,996.81 : x
  2. Step 2: Convert to fraction form
    772,234.25/1,065,639.71 = 449,996.81/x
  3. Step 3: Cross multiply
    772,234.25x = 1,065,639.71 × 449,996.81
  4. Step 4: Simplify right side
    772,234.25x = 479,534,465,906.12
  5. Step 5: Solve for x
    x = 479,534,465,906.12/772,234.25
  6. Step 6: Final answer
    x = 620,970.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.