Home / 987,947.52-1,363,369.84-535,238.48

Finding the Fourth Proportional to 987,947.52, 1,363,369.84 and 535,238.48

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Solution

The fourth proportional to 987,947.52, 1,363,369.84 and 535,238.48 is: 738,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,947.52 : 1,363,369.84 = 535,238.48 : x
  2. Step 2: Convert to fraction form
    987,947.52/1,363,369.84 = 535,238.48/x
  3. Step 3: Cross multiply
    987,947.52x = 1,363,369.84 × 535,238.48
  4. Step 4: Simplify right side
    987,947.52x = 729,728,000,839.44
  5. Step 5: Solve for x
    x = 729,728,000,839.44/987,947.52
  6. Step 6: Final answer
    x = 738,630.33

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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.