Home / 787,280.39-1,181,107.96-254,801.42

Finding the Fourth Proportional to 787,280.39, 1,181,107.96 and 254,801.42

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Solution

The fourth proportional to 787,280.39, 1,181,107.96 and 254,801.42 is: 382,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,280.39 : 1,181,107.96 = 254,801.42 : x
  2. Step 2: Convert to fraction form
    787,280.39/1,181,107.96 = 254,801.42/x
  3. Step 3: Cross multiply
    787,280.39x = 1,181,107.96 × 254,801.42
  4. Step 4: Simplify right side
    787,280.39x = 300,947,985,381.30
  5. Step 5: Solve for x
    x = 300,947,985,381.30/787,280.39
  6. Step 6: Final answer
    x = 382,262.77

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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.