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Finding the Fourth Proportional to 664,415.71, 996,560.37 and 264,949.63

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Solution

The fourth proportional to 664,415.71, 996,560.37 and 264,949.63 is: 397,399.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,415.71 : 996,560.37 = 264,949.63 : x
  2. Step 2: Convert to fraction form
    664,415.71/996,560.37 = 264,949.63/x
  3. Step 3: Cross multiply
    664,415.71x = 996,560.37 × 264,949.63
  4. Step 4: Simplify right side
    664,415.71x = 264,038,301,304.16
  5. Step 5: Solve for x
    x = 264,038,301,304.16/664,415.71
  6. Step 6: Final answer
    x = 397,399.24

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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.