Home / 787,276.80-1,181,206.80-254,815.20

Finding the Fourth Proportional to 787,276.80, 1,181,206.80 and 254,815.20

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Solution

The fourth proportional to 787,276.80, 1,181,206.80 and 254,815.20 is: 382,317.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,276.80 : 1,181,206.80 = 254,815.20 : x
  2. Step 2: Convert to fraction form
    787,276.80/1,181,206.80 = 254,815.20/x
  3. Step 3: Cross multiply
    787,276.80x = 1,181,206.80 × 254,815.20
  4. Step 4: Simplify right side
    787,276.80x = 300,989,446,983.36
  5. Step 5: Solve for x
    x = 300,989,446,983.36/787,276.80
  6. Step 6: Final answer
    x = 382,317.18

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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.