Home / 813,706.42-1,220,392.83-308,092.96

Finding the Fourth Proportional to 813,706.42, 1,220,392.83 and 308,092.96

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Solution

The fourth proportional to 813,706.42, 1,220,392.83 and 308,092.96 is: 462,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,706.42 : 1,220,392.83 = 308,092.96 : x
  2. Step 2: Convert to fraction form
    813,706.42/1,220,392.83 = 308,092.96/x
  3. Step 3: Cross multiply
    813,706.42x = 1,220,392.83 × 308,092.96
  4. Step 4: Simplify right side
    813,706.42x = 375,994,439,357.48
  5. Step 5: Solve for x
    x = 375,994,439,357.48/813,706.42
  6. Step 6: Final answer
    x = 462,076.28

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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.