Home / 419,264.28-578,585.39-228,278.43

Finding the Fourth Proportional to 419,264.28, 578,585.39 and 228,278.43

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Solution

The fourth proportional to 419,264.28, 578,585.39 and 228,278.43 is: 315,024.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,264.28 : 578,585.39 = 228,278.43 : x
  2. Step 2: Convert to fraction form
    419,264.28/578,585.39 = 228,278.43/x
  3. Step 3: Cross multiply
    419,264.28x = 578,585.39 × 228,278.43
  4. Step 4: Simplify right side
    419,264.28x = 132,078,563,308.75
  5. Step 5: Solve for x
    x = 132,078,563,308.75/419,264.28
  6. Step 6: Final answer
    x = 315,024.60

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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.