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Finding the Fourth Proportional to 570,786.24, 787,690.80 and 344,388

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Solution

The fourth proportional to 570,786.24, 787,690.80 and 344,388 is: 475,258.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,786.24 : 787,690.80 = 344,388 : x
  2. Step 2: Convert to fraction form
    570,786.24/787,690.80 = 344,388/x
  3. Step 3: Cross multiply
    570,786.24x = 787,690.80 × 344,388
  4. Step 4: Simplify right side
    570,786.24x = 271,271,259,230.40
  5. Step 5: Solve for x
    x = 271,271,259,230.40/570,786.24
  6. Step 6: Final answer
    x = 475,258.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.