Home / 1,210,104.20-1,815,329.10-411,422.60

Finding the Fourth Proportional to 1,210,104.20, 1,815,329.10 and 411,422.60

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Solution

The fourth proportional to 1,210,104.20, 1,815,329.10 and 411,422.60 is: 617,192.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,104.20 : 1,815,329.10 = 411,422.60 : x
  2. Step 2: Convert to fraction form
    1,210,104.20/1,815,329.10 = 411,422.60/x
  3. Step 3: Cross multiply
    1,210,104.20x = 1,815,329.10 × 411,422.60
  4. Step 4: Simplify right side
    1,210,104.20x = 746,867,418,177.66
  5. Step 5: Solve for x
    x = 746,867,418,177.66/1,210,104.20
  6. Step 6: Final answer
    x = 617,192.65

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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.