Home / 873,122.31-1,309,683.78-392,789.07

Finding the Fourth Proportional to 873,122.31, 1,309,683.78 and 392,789.07

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Solution

The fourth proportional to 873,122.31, 1,309,683.78 and 392,789.07 is: 589,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,122.31 : 1,309,683.78 = 392,789.07 : x
  2. Step 2: Convert to fraction form
    873,122.31/1,309,683.78 = 392,789.07/x
  3. Step 3: Cross multiply
    873,122.31x = 1,309,683.78 × 392,789.07
  4. Step 4: Simplify right side
    873,122.31x = 514,429,473,940.29
  5. Step 5: Solve for x
    x = 514,429,473,940.29/873,122.31
  6. Step 6: Final answer
    x = 589,183.75

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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.