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Finding the Fourth Proportional to 496,684, 685,423.92 and 270,331.12

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Solution

The fourth proportional to 496,684, 685,423.92 and 270,331.12 is: 373,056.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,684 : 685,423.92 = 270,331.12 : x
  2. Step 2: Convert to fraction form
    496,684/685,423.92 = 270,331.12/x
  3. Step 3: Cross multiply
    496,684x = 685,423.92 × 270,331.12
  4. Step 4: Simplify right side
    496,684x = 185,291,415,968.39
  5. Step 5: Solve for x
    x = 185,291,415,968.39/496,684
  6. Step 6: Final answer
    x = 373,056.95

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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.