Home / 781,830.70-1,172,994.99-349,481.86

Finding the Fourth Proportional to 781,830.70, 1,172,994.99 and 349,481.86

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Solution

The fourth proportional to 781,830.70, 1,172,994.99 and 349,481.86 is: 524,334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,830.70 : 1,172,994.99 = 349,481.86 : x
  2. Step 2: Convert to fraction form
    781,830.70/1,172,994.99 = 349,481.86/x
  3. Step 3: Cross multiply
    781,830.70x = 1,172,994.99 × 349,481.86
  4. Step 4: Simplify right side
    781,830.70x = 409,940,470,875.88
  5. Step 5: Solve for x
    x = 409,940,470,875.88/781,830.70
  6. Step 6: Final answer
    x = 524,334.07

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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.