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Finding the Fourth Proportional to 648,980.55, 894,327.89 and 467,349.30

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Solution

The fourth proportional to 648,980.55, 894,327.89 and 467,349.30 is: 644,030.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,980.55 : 894,327.89 = 467,349.30 : x
  2. Step 2: Convert to fraction form
    648,980.55/894,327.89 = 467,349.30/x
  3. Step 3: Cross multiply
    648,980.55x = 894,327.89 × 467,349.30
  4. Step 4: Simplify right side
    648,980.55x = 417,963,511,025.23
  5. Step 5: Solve for x
    x = 417,963,511,025.23/648,980.55
  6. Step 6: Final answer
    x = 644,030.87

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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.