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Finding the Fourth Proportional to 664,270.40, 996,405.60 and 547,630.40

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Solution

The fourth proportional to 664,270.40, 996,405.60 and 547,630.40 is: 821,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,270.40 : 996,405.60 = 547,630.40 : x
  2. Step 2: Convert to fraction form
    664,270.40/996,405.60 = 547,630.40/x
  3. Step 3: Cross multiply
    664,270.40x = 996,405.60 × 547,630.40
  4. Step 4: Simplify right side
    664,270.40x = 545,661,997,290.24
  5. Step 5: Solve for x
    x = 545,661,997,290.24/664,270.40
  6. Step 6: Final answer
    x = 821,445.60

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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.