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Finding the Fourth Proportional to 485,841.51, 670,462.46 and 270,995.49

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Solution

The fourth proportional to 485,841.51, 670,462.46 and 270,995.49 is: 373,974.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,841.51 : 670,462.46 = 270,995.49 : x
  2. Step 2: Convert to fraction form
    485,841.51/670,462.46 = 270,995.49/x
  3. Step 3: Cross multiply
    485,841.51x = 670,462.46 × 270,995.49
  4. Step 4: Simplify right side
    485,841.51x = 181,692,301,519.33
  5. Step 5: Solve for x
    x = 181,692,301,519.33/485,841.51
  6. Step 6: Final answer
    x = 373,974.43

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1.5x scale

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.