Home / 579,349.36-869,264.10-312,796.54

Finding the Fourth Proportional to 579,349.36, 869,264.10 and 312,796.54

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Solution

The fourth proportional to 579,349.36, 869,264.10 and 312,796.54 is: 469,324.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,349.36 : 869,264.10 = 312,796.54 : x
  2. Step 2: Convert to fraction form
    579,349.36/869,264.10 = 312,796.54/x
  3. Step 3: Cross multiply
    579,349.36x = 869,264.10 × 312,796.54
  4. Step 4: Simplify right side
    579,349.36x = 271,902,802,826.21
  5. Step 5: Solve for x
    x = 271,902,802,826.21/579,349.36
  6. Step 6: Final answer
    x = 469,324.42

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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.