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Finding the Fourth Proportional to 659,906.56, 910,610.40 and 373,380.40

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Solution

The fourth proportional to 659,906.56, 910,610.40 and 373,380.40 is: 515,230.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,906.56 : 910,610.40 = 373,380.40 : x
  2. Step 2: Convert to fraction form
    659,906.56/910,610.40 = 373,380.40/x
  3. Step 3: Cross multiply
    659,906.56x = 910,610.40 × 373,380.40
  4. Step 4: Simplify right side
    659,906.56x = 340,004,075,396.16
  5. Step 5: Solve for x
    x = 340,004,075,396.16/659,906.56
  6. Step 6: Final answer
    x = 515,230.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.