Home / 686,489.37-1,029,905.56-484,479.90

Finding the Fourth Proportional to 686,489.37, 1,029,905.56 and 484,479.90

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Solution

The fourth proportional to 686,489.37, 1,029,905.56 and 484,479.90 is: 726,840.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,489.37 : 1,029,905.56 = 484,479.90 : x
  2. Step 2: Convert to fraction form
    686,489.37/1,029,905.56 = 484,479.90/x
  3. Step 3: Cross multiply
    686,489.37x = 1,029,905.56 × 484,479.90
  4. Step 4: Simplify right side
    686,489.37x = 498,968,542,718.24
  5. Step 5: Solve for x
    x = 498,968,542,718.24/686,489.37
  6. Step 6: Final answer
    x = 726,840.89

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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.