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Finding the Fourth Proportional to 567,504.29, 783,135.76 and 309,375.89

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Solution

The fourth proportional to 567,504.29, 783,135.76 and 309,375.89 is: 426,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,504.29 : 783,135.76 = 309,375.89 : x
  2. Step 2: Convert to fraction form
    567,504.29/783,135.76 = 309,375.89/x
  3. Step 3: Cross multiply
    567,504.29x = 783,135.76 × 309,375.89
  4. Step 4: Simplify right side
    567,504.29x = 242,283,322,740.83
  5. Step 5: Solve for x
    x = 242,283,322,740.83/567,504.29
  6. Step 6: Final answer
    x = 426,927.74

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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.