Home / 529,949.28-731,165.05-300,488.48

Finding the Fourth Proportional to 529,949.28, 731,165.05 and 300,488.48

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Solution

The fourth proportional to 529,949.28, 731,165.05 and 300,488.48 is: 414,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,949.28 : 731,165.05 = 300,488.48 : x
  2. Step 2: Convert to fraction form
    529,949.28/731,165.05 = 300,488.48/x
  3. Step 3: Cross multiply
    529,949.28x = 731,165.05 × 300,488.48
  4. Step 4: Simplify right side
    529,949.28x = 219,706,678,923.21
  5. Step 5: Solve for x
    x = 219,706,678,923.21/529,949.28
  6. Step 6: Final answer
    x = 414,580.58

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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.