Home / 456,520.48-629,997.84-255,316

Finding the Fourth Proportional to 456,520.48, 629,997.84 and 255,316

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Solution

The fourth proportional to 456,520.48, 629,997.84 and 255,316 is: 352,335.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,520.48 : 629,997.84 = 255,316 : x
  2. Step 2: Convert to fraction form
    456,520.48/629,997.84 = 255,316/x
  3. Step 3: Cross multiply
    456,520.48x = 629,997.84 × 255,316
  4. Step 4: Simplify right side
    456,520.48x = 160,848,528,517.44
  5. Step 5: Solve for x
    x = 160,848,528,517.44/456,520.48
  6. Step 6: Final answer
    x = 352,335.84

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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.