Home / 478,118.09-659,777.92-263,216.64

Finding the Fourth Proportional to 478,118.09, 659,777.92 and 263,216.64

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Solution

The fourth proportional to 478,118.09, 659,777.92 and 263,216.64 is: 363,225.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,118.09 : 659,777.92 = 263,216.64 : x
  2. Step 2: Convert to fraction form
    478,118.09/659,777.92 = 263,216.64/x
  3. Step 3: Cross multiply
    478,118.09x = 659,777.92 × 263,216.64
  4. Step 4: Simplify right side
    478,118.09x = 173,664,524,607.74
  5. Step 5: Solve for x
    x = 173,664,524,607.74/478,118.09
  6. Step 6: Final answer
    x = 363,225.17

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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.