Home / 686,510.13-1,029,833.44-254,343.20

Finding the Fourth Proportional to 686,510.13, 1,029,833.44 and 254,343.20

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Solution

The fourth proportional to 686,510.13, 1,029,833.44 and 254,343.20 is: 381,540.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,510.13 : 1,029,833.44 = 254,343.20 : x
  2. Step 2: Convert to fraction form
    686,510.13/1,029,833.44 = 254,343.20/x
  3. Step 3: Cross multiply
    686,510.13x = 1,029,833.44 × 254,343.20
  4. Step 4: Simplify right side
    686,510.13x = 261,931,134,535.33
  5. Step 5: Solve for x
    x = 261,931,134,535.33/686,510.13
  6. Step 6: Final answer
    x = 381,540.09

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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.