Home / 851,050.44-1,276,963.20-318,612.96

Finding the Fourth Proportional to 851,050.44, 1,276,963.20 and 318,612.96

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Solution

The fourth proportional to 851,050.44, 1,276,963.20 and 318,612.96 is: 478,064.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,050.44 : 1,276,963.20 = 318,612.96 : x
  2. Step 2: Convert to fraction form
    851,050.44/1,276,963.20 = 318,612.96/x
  3. Step 3: Cross multiply
    851,050.44x = 1,276,963.20 × 318,612.96
  4. Step 4: Simplify right side
    851,050.44x = 406,857,024,963.07
  5. Step 5: Solve for x
    x = 406,857,024,963.07/851,050.44
  6. Step 6: Final answer
    x = 478,064.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.