Home / 988,299.06-1,363,998.96-625,756.56

Finding the Fourth Proportional to 988,299.06, 1,363,998.96 and 625,756.56

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Solution

The fourth proportional to 988,299.06, 1,363,998.96 and 625,756.56 is: 863,636.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,299.06 : 1,363,998.96 = 625,756.56 : x
  2. Step 2: Convert to fraction form
    988,299.06/1,363,998.96 = 625,756.56/x
  3. Step 3: Cross multiply
    988,299.06x = 1,363,998.96 × 625,756.56
  4. Step 4: Simplify right side
    988,299.06x = 853,531,297,053.18
  5. Step 5: Solve for x
    x = 853,531,297,053.18/988,299.06
  6. Step 6: Final answer
    x = 863,636.66

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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.