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Finding the Fourth Proportional to 610,941.14, 917,082.11 and 485,388.44

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Solution

The fourth proportional to 610,941.14, 917,082.11 and 485,388.44 is: 728,615.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,941.14 : 917,082.11 = 485,388.44 : x
  2. Step 2: Convert to fraction form
    610,941.14/917,082.11 = 485,388.44/x
  3. Step 3: Cross multiply
    610,941.14x = 917,082.11 × 485,388.44
  4. Step 4: Simplify right side
    610,941.14x = 445,141,051,352.87
  5. Step 5: Solve for x
    x = 445,141,051,352.87/610,941.14
  6. Step 6: Final answer
    x = 728,615.29

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1.5x scale

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.