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Finding the Fourth Proportional to 2,583,605.60, 3,873,658.80 and 1,320,394.40

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Solution

The fourth proportional to 2,583,605.60, 3,873,658.80 and 1,320,394.40 is: 1,979,697.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,583,605.60 : 3,873,658.80 = 1,320,394.40 : x
  2. Step 2: Convert to fraction form
    2,583,605.60/3,873,658.80 = 1,320,394.40/x
  3. Step 3: Cross multiply
    2,583,605.60x = 3,873,658.80 × 1,320,394.40
  4. Step 4: Simplify right side
    2,583,605.60x = 5,114,757,387,030.72
  5. Step 5: Solve for x
    x = 5,114,757,387,030.72/2,583,605.60
  6. Step 6: Final answer
    x = 1,979,697.44

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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.