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Finding the Fourth Proportional to 485,852.63, 670,474.89 and 270,992.53

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Solution

The fourth proportional to 485,852.63, 670,474.89 and 270,992.53 is: 373,968.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,852.63 : 670,474.89 = 270,992.53 : x
  2. Step 2: Convert to fraction form
    485,852.63/670,474.89 = 270,992.53/x
  3. Step 3: Cross multiply
    485,852.63x = 670,474.89 × 270,992.53
  4. Step 4: Simplify right side
    485,852.63x = 181,693,685,066.39
  5. Step 5: Solve for x
    x = 181,693,685,066.39/485,852.63
  6. Step 6: Final answer
    x = 373,968.72

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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.