Home / 1,643,338.20-2,465,199.30-521,520.60

Finding the Fourth Proportional to 1,643,338.20, 2,465,199.30 and 521,520.60

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Solution

The fourth proportional to 1,643,338.20, 2,465,199.30 and 521,520.60 is: 782,341.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,338.20 : 2,465,199.30 = 521,520.60 : x
  2. Step 2: Convert to fraction form
    1,643,338.20/2,465,199.30 = 521,520.60/x
  3. Step 3: Cross multiply
    1,643,338.20x = 2,465,199.30 × 521,520.60
  4. Step 4: Simplify right side
    1,643,338.20x = 1,285,652,218,055.58
  5. Step 5: Solve for x
    x = 1,285,652,218,055.58/1,643,338.20
  6. Step 6: Final answer
    x = 782,341.83

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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.