Home / 987,970.44-1,363,400.55-535,261.44

Finding the Fourth Proportional to 987,970.44, 1,363,400.55 and 535,261.44

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Solution

The fourth proportional to 987,970.44, 1,363,400.55 and 535,261.44 is: 738,661.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,970.44 : 1,363,400.55 = 535,261.44 : x
  2. Step 2: Convert to fraction form
    987,970.44/1,363,400.55 = 535,261.44/x
  3. Step 3: Cross multiply
    987,970.44x = 1,363,400.55 × 535,261.44
  4. Step 4: Simplify right side
    987,970.44x = 729,775,741,689.79
  5. Step 5: Solve for x
    x = 729,775,741,689.79/987,970.44
  6. Step 6: Final answer
    x = 738,661.51

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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.