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Finding the Fourth Proportional to 617,245.08, 851,888.88 and 375,480.72

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Solution

The fourth proportional to 617,245.08, 851,888.88 and 375,480.72 is: 518,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,245.08 : 851,888.88 = 375,480.72 : x
  2. Step 2: Convert to fraction form
    617,245.08/851,888.88 = 375,480.72/x
  3. Step 3: Cross multiply
    617,245.08x = 851,888.88 × 375,480.72
  4. Step 4: Simplify right side
    617,245.08x = 319,867,850,022.39
  5. Step 5: Solve for x
    x = 319,867,850,022.39/617,245.08
  6. Step 6: Final answer
    x = 518,218.55

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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.