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Finding the Fourth Proportional to 478,753.83, 660,709.85 and 263,893.41

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Solution

The fourth proportional to 478,753.83, 660,709.85 and 263,893.41 is: 364,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,753.83 : 660,709.85 = 263,893.41 : x
  2. Step 2: Convert to fraction form
    478,753.83/660,709.85 = 263,893.41/x
  3. Step 3: Cross multiply
    478,753.83x = 660,709.85 × 263,893.41
  4. Step 4: Simplify right side
    478,753.83x = 174,356,974,017.62
  5. Step 5: Solve for x
    x = 174,356,974,017.62/478,753.83
  6. Step 6: Final answer
    x = 364,189.20

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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.