Home / 835,494.72-1,253,511.51-386,509.68

Finding the Fourth Proportional to 835,494.72, 1,253,511.51 and 386,509.68

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Solution

The fourth proportional to 835,494.72, 1,253,511.51 and 386,509.68 is: 579,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,494.72 : 1,253,511.51 = 386,509.68 : x
  2. Step 2: Convert to fraction form
    835,494.72/1,253,511.51 = 386,509.68/x
  3. Step 3: Cross multiply
    835,494.72x = 1,253,511.51 × 386,509.68
  4. Step 4: Simplify right side
    835,494.72x = 484,494,332,606.42
  5. Step 5: Solve for x
    x = 484,494,332,606.42/835,494.72
  6. Step 6: Final answer
    x = 579,889.16

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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.