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Finding the Fourth Proportional to 478,045.94, 659,690.60 and 263,187.63

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Solution

The fourth proportional to 478,045.94, 659,690.60 and 263,187.63 is: 363,191.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,045.94 : 659,690.60 = 263,187.63 : x
  2. Step 2: Convert to fraction form
    478,045.94/659,690.60 = 263,187.63/x
  3. Step 3: Cross multiply
    478,045.94x = 659,690.60 × 263,187.63
  4. Step 4: Simplify right side
    478,045.94x = 173,622,404,231.34
  5. Step 5: Solve for x
    x = 173,622,404,231.34/478,045.94
  6. Step 6: Final answer
    x = 363,191.88

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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.