Home / 386,029.36-579,127.20-119,784.64

Finding the Fourth Proportional to 386,029.36, 579,127.20 and 119,784.64

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Solution

The fourth proportional to 386,029.36, 579,127.20 and 119,784.64 is: 179,702.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,029.36 : 579,127.20 = 119,784.64 : x
  2. Step 2: Convert to fraction form
    386,029.36/579,127.20 = 119,784.64/x
  3. Step 3: Cross multiply
    386,029.36x = 579,127.20 × 119,784.64
  4. Step 4: Simplify right side
    386,029.36x = 69,370,543,166.21
  5. Step 5: Solve for x
    x = 69,370,543,166.21/386,029.36
  6. Step 6: Final answer
    x = 179,702.76

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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.