Home / 831,890.80-1,247,836.20-453,977.20

Finding the Fourth Proportional to 831,890.80, 1,247,836.20 and 453,977.20

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Solution

The fourth proportional to 831,890.80, 1,247,836.20 and 453,977.20 is: 680,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,890.80 : 1,247,836.20 = 453,977.20 : x
  2. Step 2: Convert to fraction form
    831,890.80/1,247,836.20 = 453,977.20/x
  3. Step 3: Cross multiply
    831,890.80x = 1,247,836.20 × 453,977.20
  4. Step 4: Simplify right side
    831,890.80x = 566,489,184,134.64
  5. Step 5: Solve for x
    x = 566,489,184,134.64/831,890.80
  6. Step 6: Final answer
    x = 680,965.80

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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.