Home / 1,931,449.20-2,897,519.40-809,631.60

Finding the Fourth Proportional to 1,931,449.20, 2,897,519.40 and 809,631.60

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Solution

The fourth proportional to 1,931,449.20, 2,897,519.40 and 809,631.60 is: 1,214,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,449.20 : 2,897,519.40 = 809,631.60 : x
  2. Step 2: Convert to fraction form
    1,931,449.20/2,897,519.40 = 809,631.60/x
  3. Step 3: Cross multiply
    1,931,449.20x = 2,897,519.40 × 809,631.60
  4. Step 4: Simplify right side
    1,931,449.20x = 2,345,923,267,853.04
  5. Step 5: Solve for x
    x = 2,345,923,267,853.04/1,931,449.20
  6. Step 6: Final answer
    x = 1,214,592.27

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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.