Home / 2,143,379.60-3,213,901.40-647,277.20

Finding the Fourth Proportional to 2,143,379.60, 3,213,901.40 and 647,277.20

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Solution

The fourth proportional to 2,143,379.60, 3,213,901.40 and 647,277.20 is: 970,563.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143,379.60 : 3,213,901.40 = 647,277.20 : x
  2. Step 2: Convert to fraction form
    2,143,379.60/3,213,901.40 = 647,277.20/x
  3. Step 3: Cross multiply
    2,143,379.60x = 3,213,901.40 × 647,277.20
  4. Step 4: Simplify right side
    2,143,379.60x = 2,080,285,099,268.08
  5. Step 5: Solve for x
    x = 2,080,285,099,268.08/2,143,379.60
  6. Step 6: Final answer
    x = 970,563.08

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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.