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Finding the Fourth Proportional to 624,667.52, 862,035.20 and 338,180.16

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Solution

The fourth proportional to 624,667.52, 862,035.20 and 338,180.16 is: 466,685.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,667.52 : 862,035.20 = 338,180.16 : x
  2. Step 2: Convert to fraction form
    624,667.52/862,035.20 = 338,180.16/x
  3. Step 3: Cross multiply
    624,667.52x = 862,035.20 × 338,180.16
  4. Step 4: Simplify right side
    624,667.52x = 291,523,201,861.63
  5. Step 5: Solve for x
    x = 291,523,201,861.63/624,667.52
  6. Step 6: Final answer
    x = 466,685.38

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Double scale
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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.