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Finding the Fourth Proportional to 567,956.89, 783,782.74 and 309,839.35

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Solution

The fourth proportional to 567,956.89, 783,782.74 and 309,839.35 is: 427,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,956.89 : 783,782.74 = 309,839.35 : x
  2. Step 2: Convert to fraction form
    567,956.89/783,782.74 = 309,839.35/x
  3. Step 3: Cross multiply
    567,956.89x = 783,782.74 × 309,839.35
  4. Step 4: Simplify right side
    567,956.89x = 242,846,734,702.82
  5. Step 5: Solve for x
    x = 242,846,734,702.82/567,956.89
  6. Step 6: Final answer
    x = 427,579.52

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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.