Home / 831,803.27-1,147,879.70-469,345.07

Finding the Fourth Proportional to 831,803.27, 1,147,879.70 and 469,345.07

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Solution

The fourth proportional to 831,803.27, 1,147,879.70 and 469,345.07 is: 647,691.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,803.27 : 1,147,879.70 = 469,345.07 : x
  2. Step 2: Convert to fraction form
    831,803.27/1,147,879.70 = 469,345.07/x
  3. Step 3: Cross multiply
    831,803.27x = 1,147,879.70 × 469,345.07
  4. Step 4: Simplify right side
    831,803.27x = 538,751,670,061.96
  5. Step 5: Solve for x
    x = 538,751,670,061.96/831,803.27
  6. Step 6: Final answer
    x = 647,691.22

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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.