Home / 987,770.54-1,363,129.89-535,061.54

Finding the Fourth Proportional to 987,770.54, 1,363,129.89 and 535,061.54

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Solution

The fourth proportional to 987,770.54, 1,363,129.89 and 535,061.54 is: 738,388.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,770.54 : 1,363,129.89 = 535,061.54 : x
  2. Step 2: Convert to fraction form
    987,770.54/1,363,129.89 = 535,061.54/x
  3. Step 3: Cross multiply
    987,770.54x = 1,363,129.89 × 535,061.54
  4. Step 4: Simplify right side
    987,770.54x = 729,358,378,163.43
  5. Step 5: Solve for x
    x = 729,358,378,163.43/987,770.54
  6. Step 6: Final answer
    x = 738,388.47

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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.