Home / 852,100.20-1,276,595.10-519,287.40

Finding the Fourth Proportional to 852,100.20, 1,276,595.10 and 519,287.40

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Solution

The fourth proportional to 852,100.20, 1,276,595.10 and 519,287.40 is: 777,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,100.20 : 1,276,595.10 = 519,287.40 : x
  2. Step 2: Convert to fraction form
    852,100.20/1,276,595.10 = 519,287.40/x
  3. Step 3: Cross multiply
    852,100.20x = 1,276,595.10 × 519,287.40
  4. Step 4: Simplify right side
    852,100.20x = 662,919,750,331.74
  5. Step 5: Solve for x
    x = 662,919,750,331.74/852,100.20
  6. Step 6: Final answer
    x = 777,983.33

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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.