Home / 987,469.32-1,480,239.96-482,009.88

Finding the Fourth Proportional to 987,469.32, 1,480,239.96 and 482,009.88

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Solution

The fourth proportional to 987,469.32, 1,480,239.96 and 482,009.88 is: 722,544.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,469.32 : 1,480,239.96 = 482,009.88 : x
  2. Step 2: Convert to fraction form
    987,469.32/1,480,239.96 = 482,009.88/x
  3. Step 3: Cross multiply
    987,469.32x = 1,480,239.96 × 482,009.88
  4. Step 4: Simplify right side
    987,469.32x = 713,490,285,490.81
  5. Step 5: Solve for x
    x = 713,490,285,490.81/987,469.32
  6. Step 6: Final answer
    x = 722,544.26

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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.