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Finding the Fourth Proportional to 768,851.28, 1,153,281.78 and 504,292.32

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Solution

The fourth proportional to 768,851.28, 1,153,281.78 and 504,292.32 is: 756,441.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,851.28 : 1,153,281.78 = 504,292.32 : x
  2. Step 2: Convert to fraction form
    768,851.28/1,153,281.78 = 504,292.32/x
  3. Step 3: Cross multiply
    768,851.28x = 1,153,281.78 × 504,292.32
  4. Step 4: Simplify right side
    768,851.28x = 581,591,144,449.93
  5. Step 5: Solve for x
    x = 581,591,144,449.93/768,851.28
  6. Step 6: Final answer
    x = 756,441.67

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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.