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Finding the Fourth Proportional to 787,653.60, 1,180,119.60 and 366,064.80

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Solution

The fourth proportional to 787,653.60, 1,180,119.60 and 366,064.80 is: 548,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,653.60 : 1,180,119.60 = 366,064.80 : x
  2. Step 2: Convert to fraction form
    787,653.60/1,180,119.60 = 366,064.80/x
  3. Step 3: Cross multiply
    787,653.60x = 1,180,119.60 × 366,064.80
  4. Step 4: Simplify right side
    787,653.60x = 432,000,245,350.08
  5. Step 5: Solve for x
    x = 432,000,245,350.08/787,653.60
  6. Step 6: Final answer
    x = 548,464.76

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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.