Home / 529,828.35-731,140.88-300,401.07

Finding the Fourth Proportional to 529,828.35, 731,140.88 and 300,401.07

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Solution

The fourth proportional to 529,828.35, 731,140.88 and 300,401.07 is: 414,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,828.35 : 731,140.88 = 300,401.07 : x
  2. Step 2: Convert to fraction form
    529,828.35/731,140.88 = 300,401.07/x
  3. Step 3: Cross multiply
    529,828.35x = 731,140.88 × 300,401.07
  4. Step 4: Simplify right side
    529,828.35x = 219,635,502,672.74
  5. Step 5: Solve for x
    x = 219,635,502,672.74/529,828.35
  6. Step 6: Final answer
    x = 414,540.87

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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.