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Finding the Fourth Proportional to 404,750.40, 607,125.60 and 398,529.60

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Solution

The fourth proportional to 404,750.40, 607,125.60 and 398,529.60 is: 597,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,750.40 : 607,125.60 = 398,529.60 : x
  2. Step 2: Convert to fraction form
    404,750.40/607,125.60 = 398,529.60/x
  3. Step 3: Cross multiply
    404,750.40x = 607,125.60 × 398,529.60
  4. Step 4: Simplify right side
    404,750.40x = 241,957,522,517.76
  5. Step 5: Solve for x
    x = 241,957,522,517.76/404,750.40
  6. Step 6: Final answer
    x = 597,794.40

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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.