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Finding the Fourth Proportional to 478,264.83, 660,035.32 and 263,404.84

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Solution

The fourth proportional to 478,264.83, 660,035.32 and 263,404.84 is: 363,515.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,264.83 : 660,035.32 = 263,404.84 : x
  2. Step 2: Convert to fraction form
    478,264.83/660,035.32 = 263,404.84/x
  3. Step 3: Cross multiply
    478,264.83x = 660,035.32 × 263,404.84
  4. Step 4: Simplify right side
    478,264.83x = 173,856,497,858.95
  5. Step 5: Solve for x
    x = 173,856,497,858.95/478,264.83
  6. Step 6: Final answer
    x = 363,515.12

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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.