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Finding the Fourth Proportional to 608,163.20, 912,244.80 and 409,097.60

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Solution

The fourth proportional to 608,163.20, 912,244.80 and 409,097.60 is: 613,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,163.20 : 912,244.80 = 409,097.60 : x
  2. Step 2: Convert to fraction form
    608,163.20/912,244.80 = 409,097.60/x
  3. Step 3: Cross multiply
    608,163.20x = 912,244.80 × 409,097.60
  4. Step 4: Simplify right side
    608,163.20x = 373,197,158,292.48
  5. Step 5: Solve for x
    x = 373,197,158,292.48/608,163.20
  6. Step 6: Final answer
    x = 613,646.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.