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Finding the Fourth Proportional to 547,747.60, 821,621.40 and 252,835.60

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Solution

The fourth proportional to 547,747.60, 821,621.40 and 252,835.60 is: 379,253.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,747.60 : 821,621.40 = 252,835.60 : x
  2. Step 2: Convert to fraction form
    547,747.60/821,621.40 = 252,835.60/x
  3. Step 3: Cross multiply
    547,747.60x = 821,621.40 × 252,835.60
  4. Step 4: Simplify right side
    547,747.60x = 207,735,139,641.84
  5. Step 5: Solve for x
    x = 207,735,139,641.84/547,747.60
  6. Step 6: Final answer
    x = 379,253.40

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Half scale
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Double scale
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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.