Home / 672,780.53-1,009,365.78-199,477.28

Finding the Fourth Proportional to 672,780.53, 1,009,365.78 and 199,477.28

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Solution

The fourth proportional to 672,780.53, 1,009,365.78 and 199,477.28 is: 299,273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,780.53 : 1,009,365.78 = 199,477.28 : x
  2. Step 2: Convert to fraction form
    672,780.53/1,009,365.78 = 199,477.28/x
  3. Step 3: Cross multiply
    672,780.53x = 1,009,365.78 × 199,477.28
  4. Step 4: Simplify right side
    672,780.53x = 201,345,540,319.48
  5. Step 5: Solve for x
    x = 201,345,540,319.48/672,780.53
  6. Step 6: Final answer
    x = 299,273.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.