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Finding the Fourth Proportional to 485,847.63, 670,470.75 and 270,982.17

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Solution

The fourth proportional to 485,847.63, 670,470.75 and 270,982.17 is: 373,955.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,847.63 : 670,470.75 = 270,982.17 : x
  2. Step 2: Convert to fraction form
    485,847.63/670,470.75 = 270,982.17/x
  3. Step 3: Cross multiply
    485,847.63x = 670,470.75 × 270,982.17
  4. Step 4: Simplify right side
    485,847.63x = 181,685,618,756.53
  5. Step 5: Solve for x
    x = 181,685,618,756.53/485,847.63
  6. Step 6: Final answer
    x = 373,955.96

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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.