Home / 831,357.91-1,147,273.41-449,384.69

Finding the Fourth Proportional to 831,357.91, 1,147,273.41 and 449,384.69

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Solution

The fourth proportional to 831,357.91, 1,147,273.41 and 449,384.69 is: 620,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,357.91 : 1,147,273.41 = 449,384.69 : x
  2. Step 2: Convert to fraction form
    831,357.91/1,147,273.41 = 449,384.69/x
  3. Step 3: Cross multiply
    831,357.91x = 1,147,273.41 × 449,384.69
  4. Step 4: Simplify right side
    831,357.91x = 515,567,108,566.28
  5. Step 5: Solve for x
    x = 515,567,108,566.28/831,357.91
  6. Step 6: Final answer
    x = 620,150.60

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1.5x scale

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.