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Finding the Fourth Proportional to 529,476.39, 730,683.06 and 287,758.97

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Solution

The fourth proportional to 529,476.39, 730,683.06 and 287,758.97 is: 397,110.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,476.39 : 730,683.06 = 287,758.97 : x
  2. Step 2: Convert to fraction form
    529,476.39/730,683.06 = 287,758.97/x
  3. Step 3: Cross multiply
    529,476.39x = 730,683.06 × 287,758.97
  4. Step 4: Simplify right side
    529,476.39x = 210,260,608,478.34
  5. Step 5: Solve for x
    x = 210,260,608,478.34/529,476.39
  6. Step 6: Final answer
    x = 397,110.45

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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.