Home / 787,339.63-1,179,117.73-449,355.61

Finding the Fourth Proportional to 787,339.63, 1,179,117.73 and 449,355.61

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Solution

The fourth proportional to 787,339.63, 1,179,117.73 and 449,355.61 is: 672,953.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,339.63 : 1,179,117.73 = 449,355.61 : x
  2. Step 2: Convert to fraction form
    787,339.63/1,179,117.73 = 449,355.61/x
  3. Step 3: Cross multiply
    787,339.63x = 1,179,117.73 × 449,355.61
  4. Step 4: Simplify right side
    787,339.63x = 529,843,166,825.97
  5. Step 5: Solve for x
    x = 529,843,166,825.97/787,339.63
  6. Step 6: Final answer
    x = 672,953.76

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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.