Home / 631,140.72-946,988.52-331,551.72

Finding the Fourth Proportional to 631,140.72, 946,988.52 and 331,551.72

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Solution

The fourth proportional to 631,140.72, 946,988.52 and 331,551.72 is: 497,473.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,140.72 : 946,988.52 = 331,551.72 : x
  2. Step 2: Convert to fraction form
    631,140.72/946,988.52 = 331,551.72/x
  3. Step 3: Cross multiply
    631,140.72x = 946,988.52 × 331,551.72
  4. Step 4: Simplify right side
    631,140.72x = 313,975,672,626.25
  5. Step 5: Solve for x
    x = 313,975,672,626.25/631,140.72
  6. Step 6: Final answer
    x = 497,473.33

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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.