Home / 529,833.07-731,147.37-300,405.79

Finding the Fourth Proportional to 529,833.07, 731,147.37 and 300,405.79

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Solution

The fourth proportional to 529,833.07, 731,147.37 and 300,405.79 is: 414,547.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,833.07 : 731,147.37 = 300,405.79 : x
  2. Step 2: Convert to fraction form
    529,833.07/731,147.37 = 300,405.79/x
  3. Step 3: Cross multiply
    529,833.07x = 731,147.37 × 300,405.79
  4. Step 4: Simplify right side
    529,833.07x = 219,640,903,291.27
  5. Step 5: Solve for x
    x = 219,640,903,291.27/529,833.07
  6. Step 6: Final answer
    x = 414,547.37

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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.