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Finding the Fourth Proportional to 529,763.90, 731,054.03 and 288,046.67

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Solution

The fourth proportional to 529,763.90, 731,054.03 and 288,046.67 is: 397,493.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,763.90 : 731,054.03 = 288,046.67 : x
  2. Step 2: Convert to fraction form
    529,763.90/731,054.03 = 288,046.67/x
  3. Step 3: Cross multiply
    529,763.90x = 731,054.03 × 288,046.67
  4. Step 4: Simplify right side
    529,763.90x = 210,577,673,836.08
  5. Step 5: Solve for x
    x = 210,577,673,836.08/529,763.90
  6. Step 6: Final answer
    x = 397,493.44

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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.