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Finding the Fourth Proportional to 529,884.02, 731,233.02 and 288,161.40

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Solution

The fourth proportional to 529,884.02, 731,233.02 and 288,161.40 is: 397,658.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,884.02 : 731,233.02 = 288,161.40 : x
  2. Step 2: Convert to fraction form
    529,884.02/731,233.02 = 288,161.40/x
  3. Step 3: Cross multiply
    529,884.02x = 731,233.02 × 288,161.40
  4. Step 4: Simplify right side
    529,884.02x = 210,713,130,769.43
  5. Step 5: Solve for x
    x = 210,713,130,769.43/529,884.02
  6. Step 6: Final answer
    x = 397,658.96

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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.