Home / 631,143.72-946,993.05-331,554.69

Finding the Fourth Proportional to 631,143.72, 946,993.05 and 331,554.69

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Solution

The fourth proportional to 631,143.72, 946,993.05 and 331,554.69 is: 497,477.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,143.72 : 946,993.05 = 331,554.69 : x
  2. Step 2: Convert to fraction form
    631,143.72/946,993.05 = 331,554.69/x
  3. Step 3: Cross multiply
    631,143.72x = 946,993.05 × 331,554.69
  4. Step 4: Simplify right side
    631,143.72x = 313,979,987,124.91
  5. Step 5: Solve for x
    x = 313,979,987,124.91/631,143.72
  6. Step 6: Final answer
    x = 497,477.80

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1.5x scale

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.