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Finding the Fourth Proportional to 521,454.40, 782,181.60 and 334,830.40

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Solution

The fourth proportional to 521,454.40, 782,181.60 and 334,830.40 is: 502,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,454.40 : 782,181.60 = 334,830.40 : x
  2. Step 2: Convert to fraction form
    521,454.40/782,181.60 = 334,830.40/x
  3. Step 3: Cross multiply
    521,454.40x = 782,181.60 × 334,830.40
  4. Step 4: Simplify right side
    521,454.40x = 261,898,178,000.64
  5. Step 5: Solve for x
    x = 261,898,178,000.64/521,454.40
  6. Step 6: Final answer
    x = 502,245.60

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Similar ratio
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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.