Home / 485,814.37-670,425.03-270,968.35

Finding the Fourth Proportional to 485,814.37, 670,425.03 and 270,968.35

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Solution

The fourth proportional to 485,814.37, 670,425.03 and 270,968.35 is: 373,936.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,814.37 : 670,425.03 = 270,968.35 : x
  2. Step 2: Convert to fraction form
    485,814.37/670,425.03 = 270,968.35/x
  3. Step 3: Cross multiply
    485,814.37x = 670,425.03 × 270,968.35
  4. Step 4: Simplify right side
    485,814.37x = 181,663,964,177.80
  5. Step 5: Solve for x
    x = 181,663,964,177.80/485,814.37
  6. Step 6: Final answer
    x = 373,936.99

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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.