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Finding the Fourth Proportional to 659,907.06, 910,611.09 and 373,380.90

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Solution

The fourth proportional to 659,907.06, 910,611.09 and 373,380.90 is: 515,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,907.06 : 910,611.09 = 373,380.90 : x
  2. Step 2: Convert to fraction form
    659,907.06/910,611.09 = 373,380.90/x
  3. Step 3: Cross multiply
    659,907.06x = 910,611.09 × 373,380.90
  4. Step 4: Simplify right side
    659,907.06x = 340,004,788,334.18
  5. Step 5: Solve for x
    x = 340,004,788,334.18/659,907.06
  6. Step 6: Final answer
    x = 515,231.32

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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.