Home / 763,404.90-1,145,107.35-264,768.90

Finding the Fourth Proportional to 763,404.90, 1,145,107.35 and 264,768.90

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Solution

The fourth proportional to 763,404.90, 1,145,107.35 and 264,768.90 is: 397,153.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,404.90 : 1,145,107.35 = 264,768.90 : x
  2. Step 2: Convert to fraction form
    763,404.90/1,145,107.35 = 264,768.90/x
  3. Step 3: Cross multiply
    763,404.90x = 1,145,107.35 × 264,768.90
  4. Step 4: Simplify right side
    763,404.90x = 303,188,813,441.42
  5. Step 5: Solve for x
    x = 303,188,813,441.42/763,404.90
  6. Step 6: Final answer
    x = 397,153.35

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Double scale
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Similar ratio
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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.