Home / 386,555.90-579,917.13-116,661.46

Finding the Fourth Proportional to 386,555.90, 579,917.13 and 116,661.46

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Solution

The fourth proportional to 386,555.90, 579,917.13 and 116,661.46 is: 175,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,555.90 : 579,917.13 = 116,661.46 : x
  2. Step 2: Convert to fraction form
    386,555.90/579,917.13 = 116,661.46/x
  3. Step 3: Cross multiply
    386,555.90x = 579,917.13 × 116,661.46
  4. Step 4: Simplify right side
    386,555.90x = 67,653,978,483.62
  5. Step 5: Solve for x
    x = 67,653,978,483.62/386,555.90
  6. Step 6: Final answer
    x = 175,017.32

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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.