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Finding the Fourth Proportional to 737,765.20, 1,106,647.80 and 513,816.40

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Solution

The fourth proportional to 737,765.20, 1,106,647.80 and 513,816.40 is: 770,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,765.20 : 1,106,647.80 = 513,816.40 : x
  2. Step 2: Convert to fraction form
    737,765.20/1,106,647.80 = 513,816.40/x
  3. Step 3: Cross multiply
    737,765.20x = 1,106,647.80 × 513,816.40
  4. Step 4: Simplify right side
    737,765.20x = 568,613,788,663.92
  5. Step 5: Solve for x
    x = 568,613,788,663.92/737,765.20
  6. Step 6: Final answer
    x = 770,724.60

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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.