Home / 981,235.40-1,472,424.18-412,575.32

Finding the Fourth Proportional to 981,235.40, 1,472,424.18 and 412,575.32

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Solution

The fourth proportional to 981,235.40, 1,472,424.18 and 412,575.32 is: 619,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,235.40 : 1,472,424.18 = 412,575.32 : x
  2. Step 2: Convert to fraction form
    981,235.40/1,472,424.18 = 412,575.32/x
  3. Step 3: Cross multiply
    981,235.40x = 1,472,424.18 × 412,575.32
  4. Step 4: Simplify right side
    981,235.40x = 607,485,877,239.24
  5. Step 5: Solve for x
    x = 607,485,877,239.24/981,235.40
  6. Step 6: Final answer
    x = 619,103.10

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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.