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Finding the Fourth Proportional to 648,359.42, 894,699.60 and 361,897.97

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Solution

The fourth proportional to 648,359.42, 894,699.60 and 361,897.97 is: 499,398.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,359.42 : 894,699.60 = 361,897.97 : x
  2. Step 2: Convert to fraction form
    648,359.42/894,699.60 = 361,897.97/x
  3. Step 3: Cross multiply
    648,359.42x = 894,699.60 × 361,897.97
  4. Step 4: Simplify right side
    648,359.42x = 323,789,968,999.81
  5. Step 5: Solve for x
    x = 323,789,968,999.81/648,359.42
  6. Step 6: Final answer
    x = 499,398.88

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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.