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Finding the Fourth Proportional to 613,489.42, 846,396.26 and 355,225.42

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Solution

The fourth proportional to 613,489.42, 846,396.26 and 355,225.42 is: 490,084.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,489.42 : 846,396.26 = 355,225.42 : x
  2. Step 2: Convert to fraction form
    613,489.42/846,396.26 = 355,225.42/x
  3. Step 3: Cross multiply
    613,489.42x = 846,396.26 × 355,225.42
  4. Step 4: Simplify right side
    613,489.42x = 300,661,466,944.93
  5. Step 5: Solve for x
    x = 300,661,466,944.93/613,489.42
  6. Step 6: Final answer
    x = 490,084.19

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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.