Home / 685,533.12-946,035.08-379,609.48

Finding the Fourth Proportional to 685,533.12, 946,035.08 and 379,609.48

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Solution

The fourth proportional to 685,533.12, 946,035.08 and 379,609.48 is: 523,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,533.12 : 946,035.08 = 379,609.48 : x
  2. Step 2: Convert to fraction form
    685,533.12/946,035.08 = 379,609.48/x
  3. Step 3: Cross multiply
    685,533.12x = 946,035.08 × 379,609.48
  4. Step 4: Simplify right side
    685,533.12x = 359,123,884,780.56
  5. Step 5: Solve for x
    x = 359,123,884,780.56/685,533.12
  6. Step 6: Final answer
    x = 523,860.74

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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.