Home / 686,670.72-1,029,809.25-206,944.98

Finding the Fourth Proportional to 686,670.72, 1,029,809.25 and 206,944.98

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Solution

The fourth proportional to 686,670.72, 1,029,809.25 and 206,944.98 is: 310,358.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,670.72 : 1,029,809.25 = 206,944.98 : x
  2. Step 2: Convert to fraction form
    686,670.72/1,029,809.25 = 206,944.98/x
  3. Step 3: Cross multiply
    686,670.72x = 1,029,809.25 × 206,944.98
  4. Step 4: Simplify right side
    686,670.72x = 213,113,854,645.07
  5. Step 5: Solve for x
    x = 213,113,854,645.07/686,670.72
  6. Step 6: Final answer
    x = 310,358.15

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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.