Home / 2,579,765.17-3,869,735.10-686,508.43

Finding the Fourth Proportional to 2,579,765.17, 3,869,735.10 and 686,508.43

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Solution

The fourth proportional to 2,579,765.17, 3,869,735.10 and 686,508.43 is: 1,029,785.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,765.17 : 3,869,735.10 = 686,508.43 : x
  2. Step 2: Convert to fraction form
    2,579,765.17/3,869,735.10 = 686,508.43/x
  3. Step 3: Cross multiply
    2,579,765.17x = 3,869,735.10 × 686,508.43
  4. Step 4: Simplify right side
    2,579,765.17x = 2,656,605,768,016.89
  5. Step 5: Solve for x
    x = 2,656,605,768,016.89/2,579,765.17
  6. Step 6: Final answer
    x = 1,029,785.89

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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.