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Finding the Fourth Proportional to 576,682.47, 865,208.79 and 277,184.79

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Solution

The fourth proportional to 576,682.47, 865,208.79 and 277,184.79 is: 415,866.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,682.47 : 865,208.79 = 277,184.79 : x
  2. Step 2: Convert to fraction form
    576,682.47/865,208.79 = 277,184.79/x
  3. Step 3: Cross multiply
    576,682.47x = 865,208.79 × 277,184.79
  4. Step 4: Simplify right side
    576,682.47x = 239,822,716,762.30
  5. Step 5: Solve for x
    x = 239,822,716,762.30/576,682.47
  6. Step 6: Final answer
    x = 415,866.15

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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.