Home / 869,719.26-1,200,222.42-482,541.78

Finding the Fourth Proportional to 869,719.26, 1,200,222.42 and 482,541.78

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Solution

The fourth proportional to 869,719.26, 1,200,222.42 and 482,541.78 is: 665,913.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,719.26 : 1,200,222.42 = 482,541.78 : x
  2. Step 2: Convert to fraction form
    869,719.26/1,200,222.42 = 482,541.78/x
  3. Step 3: Cross multiply
    869,719.26x = 1,200,222.42 × 482,541.78
  4. Step 4: Simplify right side
    869,719.26x = 579,157,462,942.71
  5. Step 5: Solve for x
    x = 579,157,462,942.71/869,719.26
  6. Step 6: Final answer
    x = 665,913.12

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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.