Home / 529,927.71-731,405.26-300,489.54

Finding the Fourth Proportional to 529,927.71, 731,405.26 and 300,489.54

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Solution

The fourth proportional to 529,927.71, 731,405.26 and 300,489.54 is: 414,735.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,927.71 : 731,405.26 = 300,489.54 : x
  2. Step 2: Convert to fraction form
    529,927.71/731,405.26 = 300,489.54/x
  3. Step 3: Cross multiply
    529,927.71x = 731,405.26 × 300,489.54
  4. Step 4: Simplify right side
    529,927.71x = 219,779,630,130.98
  5. Step 5: Solve for x
    x = 219,779,630,130.98/529,927.71
  6. Step 6: Final answer
    x = 414,735.12

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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.