Home / 3,985,605.27-5,979,356.52-1,289,930.50

Finding the Fourth Proportional to 3,985,605.27, 5,979,356.52 and 1,289,930.50

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Solution

The fourth proportional to 3,985,605.27, 5,979,356.52 and 1,289,930.50 is: 1,935,202.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,605.27 : 5,979,356.52 = 1,289,930.50 : x
  2. Step 2: Convert to fraction form
    3,985,605.27/5,979,356.52 = 1,289,930.50/x
  3. Step 3: Cross multiply
    3,985,605.27x = 5,979,356.52 × 1,289,930.50
  4. Step 4: Simplify right side
    3,985,605.27x = 7,712,954,348,158.82
  5. Step 5: Solve for x
    x = 7,712,954,348,158.82/3,985,605.27
  6. Step 6: Final answer
    x = 1,935,202.77

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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.