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Finding the Fourth Proportional to 639,293.51, 882,197.22 and 348,897.58

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Solution

The fourth proportional to 639,293.51, 882,197.22 and 348,897.58 is: 481,463.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,293.51 : 882,197.22 = 348,897.58 : x
  2. Step 2: Convert to fraction form
    639,293.51/882,197.22 = 348,897.58/x
  3. Step 3: Cross multiply
    639,293.51x = 882,197.22 × 348,897.58
  4. Step 4: Simplify right side
    639,293.51x = 307,796,474,243.60
  5. Step 5: Solve for x
    x = 307,796,474,243.60/639,293.51
  6. Step 6: Final answer
    x = 481,463.47

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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.