Home / 500,846.29-690,906.40-307,297.17

Finding the Fourth Proportional to 500,846.29, 690,906.40 and 307,297.17

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Solution

The fourth proportional to 500,846.29, 690,906.40 and 307,297.17 is: 423,909.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,846.29 : 690,906.40 = 307,297.17 : x
  2. Step 2: Convert to fraction form
    500,846.29/690,906.40 = 307,297.17/x
  3. Step 3: Cross multiply
    500,846.29x = 690,906.40 × 307,297.17
  4. Step 4: Simplify right side
    500,846.29x = 212,313,580,686.65
  5. Step 5: Solve for x
    x = 212,313,580,686.65/500,846.29
  6. Step 6: Final answer
    x = 423,909.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.