Home / 485,844.51-670,466.61-270,998.49

Finding the Fourth Proportional to 485,844.51, 670,466.61 and 270,998.49

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Solution

The fourth proportional to 485,844.51, 670,466.61 and 270,998.49 is: 373,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,844.51 : 670,466.61 = 270,998.49 : x
  2. Step 2: Convert to fraction form
    485,844.51/670,466.61 = 270,998.49/x
  3. Step 3: Cross multiply
    485,844.51x = 670,466.61 × 270,998.49
  4. Step 4: Simplify right side
    485,844.51x = 181,695,438,905.42
  5. Step 5: Solve for x
    x = 181,695,438,905.42/485,844.51
  6. Step 6: Final answer
    x = 373,978.58

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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.