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Finding the Fourth Proportional to 478,352.94, 660,123.99 and 263,488.02

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Solution

The fourth proportional to 478,352.94, 660,123.99 and 263,488.02 is: 363,611.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,352.94 : 660,123.99 = 263,488.02 : x
  2. Step 2: Convert to fraction form
    478,352.94/660,123.99 = 263,488.02/x
  3. Step 3: Cross multiply
    478,352.94x = 660,123.99 × 263,488.02
  4. Step 4: Simplify right side
    478,352.94x = 173,934,763,079.60
  5. Step 5: Solve for x
    x = 173,934,763,079.60/478,352.94
  6. Step 6: Final answer
    x = 363,611.78

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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.