Home / 685,663.25-946,189.15-375,560.89

Finding the Fourth Proportional to 685,663.25, 946,189.15 and 375,560.89

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Solution

The fourth proportional to 685,663.25, 946,189.15 and 375,560.89 is: 518,259.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,663.25 : 946,189.15 = 375,560.89 : x
  2. Step 2: Convert to fraction form
    685,663.25/946,189.15 = 375,560.89/x
  3. Step 3: Cross multiply
    685,663.25x = 946,189.15 × 375,560.89
  4. Step 4: Simplify right side
    685,663.25x = 355,351,635,977.97
  5. Step 5: Solve for x
    x = 355,351,635,977.97/685,663.25
  6. Step 6: Final answer
    x = 518,259.71

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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.