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Finding the Fourth Proportional to 533,276.70, 800,352.45 and 515,780.70

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Solution

The fourth proportional to 533,276.70, 800,352.45 and 515,780.70 is: 774,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,276.70 : 800,352.45 = 515,780.70 : x
  2. Step 2: Convert to fraction form
    533,276.70/800,352.45 = 515,780.70/x
  3. Step 3: Cross multiply
    533,276.70x = 800,352.45 × 515,780.70
  4. Step 4: Simplify right side
    533,276.70x = 412,806,346,907.72
  5. Step 5: Solve for x
    x = 412,806,346,907.72/533,276.70
  6. Step 6: Final answer
    x = 774,094.10

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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.