Home / 829,275.42-1,243,125-324,160.23

Finding the Fourth Proportional to 829,275.42, 1,243,125 and 324,160.23

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Solution

The fourth proportional to 829,275.42, 1,243,125 and 324,160.23 is: 485,932.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,275.42 : 1,243,125 = 324,160.23 : x
  2. Step 2: Convert to fraction form
    829,275.42/1,243,125 = 324,160.23/x
  3. Step 3: Cross multiply
    829,275.42x = 1,243,125 × 324,160.23
  4. Step 4: Simplify right side
    829,275.42x = 402,971,685,918.75
  5. Step 5: Solve for x
    x = 402,971,685,918.75/829,275.42
  6. Step 6: Final answer
    x = 485,932.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.