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Finding the Fourth Proportional to 518,532.08, 715,732.41 and 300,795.77

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Solution

The fourth proportional to 518,532.08, 715,732.41 and 300,795.77 is: 415,189.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,532.08 : 715,732.41 = 300,795.77 : x
  2. Step 2: Convert to fraction form
    518,532.08/715,732.41 = 300,795.77/x
  3. Step 3: Cross multiply
    518,532.08x = 715,732.41 × 300,795.77
  4. Step 4: Simplify right side
    518,532.08x = 215,289,277,801.24
  5. Step 5: Solve for x
    x = 215,289,277,801.24/518,532.08
  6. Step 6: Final answer
    x = 415,189.90

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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.