Home / 772,998.40-1,159,699.20-299,699.20

Finding the Fourth Proportional to 772,998.40, 1,159,699.20 and 299,699.20

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Solution

The fourth proportional to 772,998.40, 1,159,699.20 and 299,699.20 is: 449,626.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,998.40 : 1,159,699.20 = 299,699.20 : x
  2. Step 2: Convert to fraction form
    772,998.40/1,159,699.20 = 299,699.20/x
  3. Step 3: Cross multiply
    772,998.40x = 1,159,699.20 × 299,699.20
  4. Step 4: Simplify right side
    772,998.40x = 347,560,922,480.64
  5. Step 5: Solve for x
    x = 347,560,922,480.64/772,998.40
  6. Step 6: Final answer
    x = 449,626.96

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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.