Home / 669,723.12-923,849.79-424,258.35

Finding the Fourth Proportional to 669,723.12, 923,849.79 and 424,258.35

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Solution

The fourth proportional to 669,723.12, 923,849.79 and 424,258.35 is: 585,243.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,723.12 : 923,849.79 = 424,258.35 : x
  2. Step 2: Convert to fraction form
    669,723.12/923,849.79 = 424,258.35/x
  3. Step 3: Cross multiply
    669,723.12x = 923,849.79 × 424,258.35
  4. Step 4: Simplify right side
    669,723.12x = 391,950,987,553.25
  5. Step 5: Solve for x
    x = 391,950,987,553.25/669,723.12
  6. Step 6: Final answer
    x = 585,243.33

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1.5x scale

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.