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Finding the Fourth Proportional to 664,221.60, 994,856.16 and 664,221.60

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Solution

The fourth proportional to 664,221.60, 994,856.16 and 664,221.60 is: 994,856.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,221.60 : 994,856.16 = 664,221.60 : x
  2. Step 2: Convert to fraction form
    664,221.60/994,856.16 = 664,221.60/x
  3. Step 3: Cross multiply
    664,221.60x = 994,856.16 × 664,221.60
  4. Step 4: Simplify right side
    664,221.60x = 660,804,950,365.06
  5. Step 5: Solve for x
    x = 660,804,950,365.06/664,221.60
  6. Step 6: Final answer
    x = 994,856.16

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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.