Home / 1,320,789-1,822,688.82-717,177

Finding the Fourth Proportional to 1,320,789, 1,822,688.82 and 717,177

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Solution

The fourth proportional to 1,320,789, 1,822,688.82 and 717,177 is: 989,704.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,789 : 1,822,688.82 = 717,177 : x
  2. Step 2: Convert to fraction form
    1,320,789/1,822,688.82 = 717,177/x
  3. Step 3: Cross multiply
    1,320,789x = 1,822,688.82 × 717,177
  4. Step 4: Simplify right side
    1,320,789x = 1,307,190,499,861.14
  5. Step 5: Solve for x
    x = 1,307,190,499,861.14/1,320,789
  6. Step 6: Final answer
    x = 989,704.26

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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.