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Finding the Fourth Proportional to 576,730.08, 864,550.80 and 277,380

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Solution

The fourth proportional to 576,730.08, 864,550.80 and 277,380 is: 415,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,730.08 : 864,550.80 = 277,380 : x
  2. Step 2: Convert to fraction form
    576,730.08/864,550.80 = 277,380/x
  3. Step 3: Cross multiply
    576,730.08x = 864,550.80 × 277,380
  4. Step 4: Simplify right side
    576,730.08x = 239,809,100,904
  5. Step 5: Solve for x
    x = 239,809,100,904/576,730.08
  6. Step 6: Final answer
    x = 415,808.21

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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.