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Finding the Fourth Proportional to 664,209.60, 996,314.40 and 531,349.35

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Solution

The fourth proportional to 664,209.60, 996,314.40 and 531,349.35 is: 797,024.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,209.60 : 996,314.40 = 531,349.35 : x
  2. Step 2: Convert to fraction form
    664,209.60/996,314.40 = 531,349.35/x
  3. Step 3: Cross multiply
    664,209.60x = 996,314.40 × 531,349.35
  4. Step 4: Simplify right side
    664,209.60x = 529,391,008,835.64
  5. Step 5: Solve for x
    x = 529,391,008,835.64/664,209.60
  6. Step 6: Final answer
    x = 797,024.03

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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.