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Finding the Fourth Proportional to 408,325.74, 563,451.03 and 378,232.62

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Solution

The fourth proportional to 408,325.74, 563,451.03 and 378,232.62 is: 521,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,325.74 : 563,451.03 = 378,232.62 : x
  2. Step 2: Convert to fraction form
    408,325.74/563,451.03 = 378,232.62/x
  3. Step 3: Cross multiply
    408,325.74x = 563,451.03 × 378,232.62
  4. Step 4: Simplify right side
    408,325.74x = 213,115,559,318.60
  5. Step 5: Solve for x
    x = 213,115,559,318.60/408,325.74
  6. Step 6: Final answer
    x = 521,925.36

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1.5x scale

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.