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Finding the Fourth Proportional to 484,910.66, 669,128.78 and 270,070.72

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Solution

The fourth proportional to 484,910.66, 669,128.78 and 270,070.72 is: 372,670.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,910.66 : 669,128.78 = 270,070.72 : x
  2. Step 2: Convert to fraction form
    484,910.66/669,128.78 = 270,070.72/x
  3. Step 3: Cross multiply
    484,910.66x = 669,128.78 × 270,070.72
  4. Step 4: Simplify right side
    484,910.66x = 180,712,091,387.32
  5. Step 5: Solve for x
    x = 180,712,091,387.32/484,910.66
  6. Step 6: Final answer
    x = 372,670.90

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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.