Home / 529,828.56-731,141.14-300,401.28

Finding the Fourth Proportional to 529,828.56, 731,141.14 and 300,401.28

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Solution

The fourth proportional to 529,828.56, 731,141.14 and 300,401.28 is: 414,541.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,828.56 : 731,141.14 = 300,401.28 : x
  2. Step 2: Convert to fraction form
    529,828.56/731,141.14 = 300,401.28/x
  3. Step 3: Cross multiply
    529,828.56x = 731,141.14 × 300,401.28
  4. Step 4: Simplify right side
    529,828.56x = 219,635,734,316.66
  5. Step 5: Solve for x
    x = 219,635,734,316.66/529,828.56
  6. Step 6: Final answer
    x = 414,541.14

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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.