Home / 767,380.40-1,151,188.84-261,823.53

Finding the Fourth Proportional to 767,380.40, 1,151,188.84 and 261,823.53

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Solution

The fourth proportional to 767,380.40, 1,151,188.84 and 261,823.53 is: 392,775.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,380.40 : 1,151,188.84 = 261,823.53 : x
  2. Step 2: Convert to fraction form
    767,380.40/1,151,188.84 = 261,823.53/x
  3. Step 3: Cross multiply
    767,380.40x = 1,151,188.84 × 261,823.53
  4. Step 4: Simplify right side
    767,380.40x = 301,408,330,772.50
  5. Step 5: Solve for x
    x = 301,408,330,772.50/767,380.40
  6. Step 6: Final answer
    x = 392,775.64

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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.