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Finding the Fourth Proportional to 664,293.85, 996,598.96 and 215,014.79

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Solution

The fourth proportional to 664,293.85, 996,598.96 and 215,014.79 is: 322,573.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,293.85 : 996,598.96 = 215,014.79 : x
  2. Step 2: Convert to fraction form
    664,293.85/996,598.96 = 215,014.79/x
  3. Step 3: Cross multiply
    664,293.85x = 996,598.96 × 215,014.79
  4. Step 4: Simplify right side
    664,293.85x = 214,283,518,052.58
  5. Step 5: Solve for x
    x = 214,283,518,052.58/664,293.85
  6. Step 6: Final answer
    x = 322,573.39

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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.