Home / 2,085,417.70-3,128,126.55-665,617.30

Finding the Fourth Proportional to 2,085,417.70, 3,128,126.55 and 665,617.30

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Solution

The fourth proportional to 2,085,417.70, 3,128,126.55 and 665,617.30 is: 998,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,417.70 : 3,128,126.55 = 665,617.30 : x
  2. Step 2: Convert to fraction form
    2,085,417.70/3,128,126.55 = 665,617.30/x
  3. Step 3: Cross multiply
    2,085,417.70x = 3,128,126.55 × 665,617.30
  4. Step 4: Simplify right side
    2,085,417.70x = 2,082,135,148,269.32
  5. Step 5: Solve for x
    x = 2,082,135,148,269.32/2,085,417.70
  6. Step 6: Final answer
    x = 998,425.95

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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.