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Finding the Fourth Proportional to 485,519.49, 670,016.88 and 270,673.27

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Solution

The fourth proportional to 485,519.49, 670,016.88 and 270,673.27 is: 373,529.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,519.49 : 670,016.88 = 270,673.27 : x
  2. Step 2: Convert to fraction form
    485,519.49/670,016.88 = 270,673.27/x
  3. Step 3: Cross multiply
    485,519.49x = 670,016.88 × 270,673.27
  4. Step 4: Simplify right side
    485,519.49x = 181,355,658,189.76
  5. Step 5: Solve for x
    x = 181,355,658,189.76/485,519.49
  6. Step 6: Final answer
    x = 373,529.10

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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.