Home / 776,710.80-1,165,008.60-327,315.60

Finding the Fourth Proportional to 776,710.80, 1,165,008.60 and 327,315.60

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Solution

The fourth proportional to 776,710.80, 1,165,008.60 and 327,315.60 is: 490,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,710.80 : 1,165,008.60 = 327,315.60 : x
  2. Step 2: Convert to fraction form
    776,710.80/1,165,008.60 = 327,315.60/x
  3. Step 3: Cross multiply
    776,710.80x = 1,165,008.60 × 327,315.60
  4. Step 4: Simplify right side
    776,710.80x = 381,325,488,914.16
  5. Step 5: Solve for x
    x = 381,325,488,914.16/776,710.80
  6. Step 6: Final answer
    x = 490,949.13

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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.