Home / 685,982.12-946,344.87-413,963.06

Finding the Fourth Proportional to 685,982.12, 946,344.87 and 413,963.06

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Solution

The fourth proportional to 685,982.12, 946,344.87 and 413,963.06 is: 571,081.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,982.12 : 946,344.87 = 413,963.06 : x
  2. Step 2: Convert to fraction form
    685,982.12/946,344.87 = 413,963.06/x
  3. Step 3: Cross multiply
    685,982.12x = 946,344.87 × 413,963.06
  4. Step 4: Simplify right side
    685,982.12x = 391,751,813,468.78
  5. Step 5: Solve for x
    x = 391,751,813,468.78/685,982.12
  6. Step 6: Final answer
    x = 571,081.67

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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.