Home / 529,834.07-731,148.75-300,406.79

Finding the Fourth Proportional to 529,834.07, 731,148.75 and 300,406.79

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Solution

The fourth proportional to 529,834.07, 731,148.75 and 300,406.79 is: 414,548.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,834.07 : 731,148.75 = 300,406.79 : x
  2. Step 2: Convert to fraction form
    529,834.07/731,148.75 = 300,406.79/x
  3. Step 3: Cross multiply
    529,834.07x = 731,148.75 × 300,406.79
  4. Step 4: Simplify right side
    529,834.07x = 219,642,049,000.01
  5. Step 5: Solve for x
    x = 219,642,049,000.01/529,834.07
  6. Step 6: Final answer
    x = 414,548.75

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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.