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Finding the Fourth Proportional to 529,880.96, 731,219.46 and 300,459.26

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Solution

The fourth proportional to 529,880.96, 731,219.46 and 300,459.26 is: 414,624.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,880.96 : 731,219.46 = 300,459.26 : x
  2. Step 2: Convert to fraction form
    529,880.96/731,219.46 = 300,459.26/x
  3. Step 3: Cross multiply
    529,880.96x = 731,219.46 × 300,459.26
  4. Step 4: Simplify right side
    529,880.96x = 219,701,657,849.20
  5. Step 5: Solve for x
    x = 219,701,657,849.20/529,880.96
  6. Step 6: Final answer
    x = 414,624.56

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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.