Home / 1,639,265.20-2,458,897.80-1,135,380.40

Finding the Fourth Proportional to 1,639,265.20, 2,458,897.80 and 1,135,380.40

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Solution

The fourth proportional to 1,639,265.20, 2,458,897.80 and 1,135,380.40 is: 1,703,070.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,639,265.20 : 2,458,897.80 = 1,135,380.40 : x
  2. Step 2: Convert to fraction form
    1,639,265.20/2,458,897.80 = 1,135,380.40/x
  3. Step 3: Cross multiply
    1,639,265.20x = 2,458,897.80 × 1,135,380.40
  4. Step 4: Simplify right side
    1,639,265.20x = 2,791,784,367,723.12
  5. Step 5: Solve for x
    x = 2,791,784,367,723.12/1,639,265.20
  6. Step 6: Final answer
    x = 1,703,070.60

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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.