Home / 769,790.81-1,154,564.92-257,452.05

Finding the Fourth Proportional to 769,790.81, 1,154,564.92 and 257,452.05

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Solution

The fourth proportional to 769,790.81, 1,154,564.92 and 257,452.05 is: 386,137.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,790.81 : 1,154,564.92 = 257,452.05 : x
  2. Step 2: Convert to fraction form
    769,790.81/1,154,564.92 = 257,452.05/x
  3. Step 3: Cross multiply
    769,790.81x = 1,154,564.92 × 257,452.05
  4. Step 4: Simplify right side
    769,790.81x = 297,245,104,868.46
  5. Step 5: Solve for x
    x = 297,245,104,868.46/769,790.81
  6. Step 6: Final answer
    x = 386,137.51

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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.