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Finding the Fourth Proportional to 529,765.39, 731,071.15 and 288,048.02

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Solution

The fourth proportional to 529,765.39, 731,071.15 and 288,048.02 is: 397,503.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,765.39 : 731,071.15 = 288,048.02 : x
  2. Step 2: Convert to fraction form
    529,765.39/731,071.15 = 288,048.02/x
  3. Step 3: Cross multiply
    529,765.39x = 731,071.15 × 288,048.02
  4. Step 4: Simplify right side
    529,765.39x = 210,583,592,141.03
  5. Step 5: Solve for x
    x = 210,583,592,141.03/529,765.39
  6. Step 6: Final answer
    x = 397,503.49

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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.