Home / 813,704.42-1,220,389.83-308,090.96

Finding the Fourth Proportional to 813,704.42, 1,220,389.83 and 308,090.96

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Solution

The fourth proportional to 813,704.42, 1,220,389.83 and 308,090.96 is: 462,073.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,704.42 : 1,220,389.83 = 308,090.96 : x
  2. Step 2: Convert to fraction form
    813,704.42/1,220,389.83 = 308,090.96/x
  3. Step 3: Cross multiply
    813,704.42x = 1,220,389.83 × 308,090.96
  4. Step 4: Simplify right side
    813,704.42x = 375,991,074,298.94
  5. Step 5: Solve for x
    x = 375,991,074,298.94/813,704.42
  6. Step 6: Final answer
    x = 462,073.28

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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.