Home / 987,930.54-1,363,350.69-535,221.54

Finding the Fourth Proportional to 987,930.54, 1,363,350.69 and 535,221.54

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Solution

The fourth proportional to 987,930.54, 1,363,350.69 and 535,221.54 is: 738,609.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,930.54 : 1,363,350.69 = 535,221.54 : x
  2. Step 2: Convert to fraction form
    987,930.54/1,363,350.69 = 535,221.54/x
  3. Step 3: Cross multiply
    987,930.54x = 1,363,350.69 × 535,221.54
  4. Step 4: Simplify right side
    987,930.54x = 729,694,655,861.86
  5. Step 5: Solve for x
    x = 729,694,655,861.86/987,930.54
  6. Step 6: Final answer
    x = 738,609.27

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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.