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Finding the Fourth Proportional to 723,082.86, 997,852.63 and 396,395.29

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Solution

The fourth proportional to 723,082.86, 997,852.63 and 396,395.29 is: 547,024.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,082.86 : 997,852.63 = 396,395.29 : x
  2. Step 2: Convert to fraction form
    723,082.86/997,852.63 = 396,395.29/x
  3. Step 3: Cross multiply
    723,082.86x = 997,852.63 × 396,395.29
  4. Step 4: Simplify right side
    723,082.86x = 395,544,080,664.14
  5. Step 5: Solve for x
    x = 395,544,080,664.14/723,082.86
  6. Step 6: Final answer
    x = 547,024.56

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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.