Home / 685,538.47-946,031.46-379,608.31

Finding the Fourth Proportional to 685,538.47, 946,031.46 and 379,608.31

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Solution

The fourth proportional to 685,538.47, 946,031.46 and 379,608.31 is: 523,853.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,538.47 : 946,031.46 = 379,608.31 : x
  2. Step 2: Convert to fraction form
    685,538.47/946,031.46 = 379,608.31/x
  3. Step 3: Cross multiply
    685,538.47x = 946,031.46 × 379,608.31
  4. Step 4: Simplify right side
    685,538.47x = 359,121,399,007.28
  5. Step 5: Solve for x
    x = 359,121,399,007.28/685,538.47
  6. Step 6: Final answer
    x = 523,853.03

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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.