Home / 831,238.20-1,244,608.53-431,037.69

Finding the Fourth Proportional to 831,238.20, 1,244,608.53 and 431,037.69

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Solution

The fourth proportional to 831,238.20, 1,244,608.53 and 431,037.69 is: 645,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,238.20 : 1,244,608.53 = 431,037.69 : x
  2. Step 2: Convert to fraction form
    831,238.20/1,244,608.53 = 431,037.69/x
  3. Step 3: Cross multiply
    831,238.20x = 1,244,608.53 × 431,037.69
  4. Step 4: Simplify right side
    831,238.20x = 536,473,185,725.50
  5. Step 5: Solve for x
    x = 536,473,185,725.50/831,238.20
  6. Step 6: Final answer
    x = 645,390.44

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1.5x scale

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.