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Finding the Fourth Proportional to 478,776.86, 660,716.51 and 263,924.63

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Solution

The fourth proportional to 478,776.86, 660,716.51 and 263,924.63 is: 364,218.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,776.86 : 660,716.51 = 263,924.63 : x
  2. Step 2: Convert to fraction form
    478,776.86/660,716.51 = 263,924.63/x
  3. Step 3: Cross multiply
    478,776.86x = 660,716.51 × 263,924.63
  4. Step 4: Simplify right side
    478,776.86x = 174,379,355,813.44
  5. Step 5: Solve for x
    x = 174,379,355,813.44/478,776.86
  6. Step 6: Final answer
    x = 364,218.43

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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.