Home / 389,749.73-584,586.32-264,196.49

Finding the Fourth Proportional to 389,749.73, 584,586.32 and 264,196.49

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Solution

The fourth proportional to 389,749.73, 584,586.32 and 264,196.49 is: 396,268.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,749.73 : 584,586.32 = 264,196.49 : x
  2. Step 2: Convert to fraction form
    389,749.73/584,586.32 = 264,196.49/x
  3. Step 3: Cross multiply
    389,749.73x = 584,586.32 × 264,196.49
  4. Step 4: Simplify right side
    389,749.73x = 154,445,649,602.10
  5. Step 5: Solve for x
    x = 154,445,649,602.10/389,749.73
  6. Step 6: Final answer
    x = 396,268.78

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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.