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Finding the Fourth Proportional to 768,352.20, 1,151,750.70 and 452,646.60

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Solution

The fourth proportional to 768,352.20, 1,151,750.70 and 452,646.60 is: 678,511.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,352.20 : 1,151,750.70 = 452,646.60 : x
  2. Step 2: Convert to fraction form
    768,352.20/1,151,750.70 = 452,646.60/x
  3. Step 3: Cross multiply
    768,352.20x = 1,151,750.70 × 452,646.60
  4. Step 4: Simplify right side
    768,352.20x = 521,336,038,402.62
  5. Step 5: Solve for x
    x = 521,336,038,402.62/768,352.20
  6. Step 6: Final answer
    x = 678,511.81

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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.