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Finding the Fourth Proportional to 528,212.40, 792,318.60 and 243,902.40

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Solution

The fourth proportional to 528,212.40, 792,318.60 and 243,902.40 is: 365,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,212.40 : 792,318.60 = 243,902.40 : x
  2. Step 2: Convert to fraction form
    528,212.40/792,318.60 = 243,902.40/x
  3. Step 3: Cross multiply
    528,212.40x = 792,318.60 × 243,902.40
  4. Step 4: Simplify right side
    528,212.40x = 193,248,408,104.64
  5. Step 5: Solve for x
    x = 193,248,408,104.64/528,212.40
  6. Step 6: Final answer
    x = 365,853.60

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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.