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Finding the Fourth Proportional to 431,474.96, 595,157.48 and 286,277.60

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Solution

The fourth proportional to 431,474.96, 595,157.48 and 286,277.60 is: 394,878.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,474.96 : 595,157.48 = 286,277.60 : x
  2. Step 2: Convert to fraction form
    431,474.96/595,157.48 = 286,277.60/x
  3. Step 3: Cross multiply
    431,474.96x = 595,157.48 × 286,277.60
  4. Step 4: Simplify right side
    431,474.96x = 170,380,254,996.45
  5. Step 5: Solve for x
    x = 170,380,254,996.45/431,474.96
  6. Step 6: Final answer
    x = 394,878.66

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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.