Home / 1,451,607.09-2,002,998.02-831,315.80

Finding the Fourth Proportional to 1,451,607.09, 2,002,998.02 and 831,315.80

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Solution

The fourth proportional to 1,451,607.09, 2,002,998.02 and 831,315.80 is: 1,147,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451,607.09 : 2,002,998.02 = 831,315.80 : x
  2. Step 2: Convert to fraction form
    1,451,607.09/2,002,998.02 = 831,315.80/x
  3. Step 3: Cross multiply
    1,451,607.09x = 2,002,998.02 × 831,315.80
  4. Step 4: Simplify right side
    1,451,607.09x = 1,665,123,902,245.63
  5. Step 5: Solve for x
    x = 1,665,123,902,245.63/1,451,607.09
  6. Step 6: Final answer
    x = 1,147,089.95

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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.