Home / 427,815.23-590,785.09-275,118.59

Finding the Fourth Proportional to 427,815.23, 590,785.09 and 275,118.59

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Solution

The fourth proportional to 427,815.23, 590,785.09 and 275,118.59 is: 379,920.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,815.23 : 590,785.09 = 275,118.59 : x
  2. Step 2: Convert to fraction form
    427,815.23/590,785.09 = 275,118.59/x
  3. Step 3: Cross multiply
    427,815.23x = 590,785.09 × 275,118.59
  4. Step 4: Simplify right side
    427,815.23x = 162,535,960,953.82
  5. Step 5: Solve for x
    x = 162,535,960,953.82/427,815.23
  6. Step 6: Final answer
    x = 379,920.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.