Home / 639,262.83-882,203.88-348,890.25

Finding the Fourth Proportional to 639,262.83, 882,203.88 and 348,890.25

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Solution

The fourth proportional to 639,262.83, 882,203.88 and 348,890.25 is: 481,480.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,262.83 : 882,203.88 = 348,890.25 : x
  2. Step 2: Convert to fraction form
    639,262.83/882,203.88 = 348,890.25/x
  3. Step 3: Cross multiply
    639,262.83x = 882,203.88 × 348,890.25
  4. Step 4: Simplify right side
    639,262.83x = 307,792,330,499.72
  5. Step 5: Solve for x
    x = 307,792,330,499.72/639,262.83
  6. Step 6: Final answer
    x = 481,480.10

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Double scale
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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.