Home / 852,109.20-1,276,608.60-519,296.40

Finding the Fourth Proportional to 852,109.20, 1,276,608.60 and 519,296.40

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Solution

The fourth proportional to 852,109.20, 1,276,608.60 and 519,296.40 is: 777,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,109.20 : 1,276,608.60 = 519,296.40 : x
  2. Step 2: Convert to fraction form
    852,109.20/1,276,608.60 = 519,296.40/x
  3. Step 3: Cross multiply
    852,109.20x = 1,276,608.60 × 519,296.40
  4. Step 4: Simplify right side
    852,109.20x = 662,938,250,189.04
  5. Step 5: Solve for x
    x = 662,938,250,189.04/852,109.20
  6. Step 6: Final answer
    x = 777,996.82

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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.