Home / 460,728.81-691,187.18-261,138.33

Finding the Fourth Proportional to 460,728.81, 691,187.18 and 261,138.33

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Solution

The fourth proportional to 460,728.81, 691,187.18 and 261,138.33 is: 391,760.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,728.81 : 691,187.18 = 261,138.33 : x
  2. Step 2: Convert to fraction form
    460,728.81/691,187.18 = 261,138.33/x
  3. Step 3: Cross multiply
    460,728.81x = 691,187.18 × 261,138.33
  4. Step 4: Simplify right side
    460,728.81x = 180,495,464,596.92
  5. Step 5: Solve for x
    x = 180,495,464,596.92/460,728.81
  6. Step 6: Final answer
    x = 391,760.75

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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.