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Finding the Fourth Proportional to 626,074.92, 863,960.04 and 339,585.48

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Solution

The fourth proportional to 626,074.92, 863,960.04 and 339,585.48 is: 468,615.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,074.92 : 863,960.04 = 339,585.48 : x
  2. Step 2: Convert to fraction form
    626,074.92/863,960.04 = 339,585.48/x
  3. Step 3: Cross multiply
    626,074.92x = 863,960.04 × 339,585.48
  4. Step 4: Simplify right side
    626,074.92x = 293,388,284,884.22
  5. Step 5: Solve for x
    x = 293,388,284,884.22/626,074.92
  6. Step 6: Final answer
    x = 468,615.30

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Double scale
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Similar ratio
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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.