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Finding the Fourth Proportional to 478,879.95, 660,859.11 and 264,014.49

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Solution

The fourth proportional to 478,879.95, 660,859.11 and 264,014.49 is: 364,342.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,879.95 : 660,859.11 = 264,014.49 : x
  2. Step 2: Convert to fraction form
    478,879.95/660,859.11 = 264,014.49/x
  3. Step 3: Cross multiply
    478,879.95x = 660,859.11 × 264,014.49
  4. Step 4: Simplify right side
    478,879.95x = 174,476,380,888.50
  5. Step 5: Solve for x
    x = 174,476,380,888.50/478,879.95
  6. Step 6: Final answer
    x = 364,342.63

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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.