Home / 639,261.74-882,202.37-348,889.16

Finding the Fourth Proportional to 639,261.74, 882,202.37 and 348,889.16

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Solution

The fourth proportional to 639,261.74, 882,202.37 and 348,889.16 is: 481,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,261.74 : 882,202.37 = 348,889.16 : x
  2. Step 2: Convert to fraction form
    639,261.74/882,202.37 = 348,889.16/x
  3. Step 3: Cross multiply
    639,261.74x = 882,202.37 × 348,889.16
  4. Step 4: Simplify right side
    639,261.74x = 307,790,837,663.85
  5. Step 5: Solve for x
    x = 307,790,837,663.85/639,261.74
  6. Step 6: Final answer
    x = 481,478.59

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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.