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Finding the Fourth Proportional to 570,905.87, 787,934.03 and 329,141.22

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Solution

The fourth proportional to 570,905.87, 787,934.03 and 329,141.22 is: 454,263.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,905.87 : 787,934.03 = 329,141.22 : x
  2. Step 2: Convert to fraction form
    570,905.87/787,934.03 = 329,141.22/x
  3. Step 3: Cross multiply
    570,905.87x = 787,934.03 × 329,141.22
  4. Step 4: Simplify right side
    570,905.87x = 259,341,566,268.01
  5. Step 5: Solve for x
    x = 259,341,566,268.01/570,905.87
  6. Step 6: Final answer
    x = 454,263.27

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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.