Home / 629,334.28-868,503.63-357,394.60

Finding the Fourth Proportional to 629,334.28, 868,503.63 and 357,394.60

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Solution

The fourth proportional to 629,334.28, 868,503.63 and 357,394.60 is: 493,217.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,334.28 : 868,503.63 = 357,394.60 : x
  2. Step 2: Convert to fraction form
    629,334.28/868,503.63 = 357,394.60/x
  3. Step 3: Cross multiply
    629,334.28x = 868,503.63 × 357,394.60
  4. Step 4: Simplify right side
    629,334.28x = 310,398,507,442.40
  5. Step 5: Solve for x
    x = 310,398,507,442.40/629,334.28
  6. Step 6: Final answer
    x = 493,217.23

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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.