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Finding the Fourth Proportional to 610,952.01, 917,098.43 and 485,399.31

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Solution

The fourth proportional to 610,952.01, 917,098.43 and 485,399.31 is: 728,631.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,952.01 : 917,098.43 = 485,399.31 : x
  2. Step 2: Convert to fraction form
    610,952.01/917,098.43 = 485,399.31/x
  3. Step 3: Cross multiply
    610,952.01x = 917,098.43 × 485,399.31
  4. Step 4: Simplify right side
    610,952.01x = 445,158,942,697.09
  5. Step 5: Solve for x
    x = 445,158,942,697.09/610,952.01
  6. Step 6: Final answer
    x = 728,631.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.