Home / 987,005.70-1,362,077.25-579,114.48

Finding the Fourth Proportional to 987,005.70, 1,362,077.25 and 579,114.48

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Solution

The fourth proportional to 987,005.70, 1,362,077.25 and 579,114.48 is: 799,183.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,005.70 : 1,362,077.25 = 579,114.48 : x
  2. Step 2: Convert to fraction form
    987,005.70/1,362,077.25 = 579,114.48/x
  3. Step 3: Cross multiply
    987,005.70x = 1,362,077.25 × 579,114.48
  4. Step 4: Simplify right side
    987,005.70x = 788,798,658,353.58
  5. Step 5: Solve for x
    x = 788,798,658,353.58/987,005.70
  6. Step 6: Final answer
    x = 799,183.49

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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.