Home / 769,493.60-1,153,617.79-320,551.71

Finding the Fourth Proportional to 769,493.60, 1,153,617.79 and 320,551.71

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Solution

The fourth proportional to 769,493.60, 1,153,617.79 and 320,551.71 is: 480,568.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,493.60 : 1,153,617.79 = 320,551.71 : x
  2. Step 2: Convert to fraction form
    769,493.60/1,153,617.79 = 320,551.71/x
  3. Step 3: Cross multiply
    769,493.60x = 1,153,617.79 × 320,551.71
  4. Step 4: Simplify right side
    769,493.60x = 369,794,155,270.92
  5. Step 5: Solve for x
    x = 369,794,155,270.92/769,493.60
  6. Step 6: Final answer
    x = 480,568.20

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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.