Home / 849,530.35-1,274,253.98-317,009.86

Finding the Fourth Proportional to 849,530.35, 1,274,253.98 and 317,009.86

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Solution

The fourth proportional to 849,530.35, 1,274,253.98 and 317,009.86 is: 475,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,530.35 : 1,274,253.98 = 317,009.86 : x
  2. Step 2: Convert to fraction form
    849,530.35/1,274,253.98 = 317,009.86/x
  3. Step 3: Cross multiply
    849,530.35x = 1,274,253.98 × 317,009.86
  4. Step 4: Simplify right side
    849,530.35x = 403,951,067,847.92
  5. Step 5: Solve for x
    x = 403,951,067,847.92/849,530.35
  6. Step 6: Final answer
    x = 475,499.28

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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.