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Finding the Fourth Proportional to 431,544.30, 595,509.33 and 240,520.78

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Solution

The fourth proportional to 431,544.30, 595,509.33 and 240,520.78 is: 331,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,544.30 : 595,509.33 = 240,520.78 : x
  2. Step 2: Convert to fraction form
    431,544.30/595,509.33 = 240,520.78/x
  3. Step 3: Cross multiply
    431,544.30x = 595,509.33 × 240,520.78
  4. Step 4: Simplify right side
    431,544.30x = 143,232,368,548.88
  5. Step 5: Solve for x
    x = 143,232,368,548.88/431,544.30
  6. Step 6: Final answer
    x = 331,906.52

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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.