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Finding the Fourth Proportional to 719,610.56, 993,078.04 and 397,341.02

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Solution

The fourth proportional to 719,610.56, 993,078.04 and 397,341.02 is: 548,339.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,610.56 : 993,078.04 = 397,341.02 : x
  2. Step 2: Convert to fraction form
    719,610.56/993,078.04 = 397,341.02/x
  3. Step 3: Cross multiply
    719,610.56x = 993,078.04 × 397,341.02
  4. Step 4: Simplify right side
    719,610.56x = 394,590,641,353.20
  5. Step 5: Solve for x
    x = 394,590,641,353.20/719,610.56
  6. Step 6: Final answer
    x = 548,339.15

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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.