Home / 763,260.77-1,145,023.12-257,825.43

Finding the Fourth Proportional to 763,260.77, 1,145,023.12 and 257,825.43

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Solution

The fourth proportional to 763,260.77, 1,145,023.12 and 257,825.43 is: 386,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,260.77 : 1,145,023.12 = 257,825.43 : x
  2. Step 2: Convert to fraction form
    763,260.77/1,145,023.12 = 257,825.43/x
  3. Step 3: Cross multiply
    763,260.77x = 1,145,023.12 × 257,825.43
  4. Step 4: Simplify right side
    763,260.77x = 295,216,078,596.22
  5. Step 5: Solve for x
    x = 295,216,078,596.22/763,260.77
  6. Step 6: Final answer
    x = 386,782.72

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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.