Home / 510,977.28-705,170.40-284,622.88

Finding the Fourth Proportional to 510,977.28, 705,170.40 and 284,622.88

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Solution

The fourth proportional to 510,977.28, 705,170.40 and 284,622.88 is: 392,791.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,977.28 : 705,170.40 = 284,622.88 : x
  2. Step 2: Convert to fraction form
    510,977.28/705,170.40 = 284,622.88/x
  3. Step 3: Cross multiply
    510,977.28x = 705,170.40 × 284,622.88
  4. Step 4: Simplify right side
    510,977.28x = 200,707,630,138.75
  5. Step 5: Solve for x
    x = 200,707,630,138.75/510,977.28
  6. Step 6: Final answer
    x = 392,791.69

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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.