Home / 742,683.69-1,113,846.30-342,940.19

Finding the Fourth Proportional to 742,683.69, 1,113,846.30 and 342,940.19

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Solution

The fourth proportional to 742,683.69, 1,113,846.30 and 342,940.19 is: 514,327.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,683.69 : 1,113,846.30 = 342,940.19 : x
  2. Step 2: Convert to fraction form
    742,683.69/1,113,846.30 = 342,940.19/x
  3. Step 3: Cross multiply
    742,683.69x = 1,113,846.30 × 342,940.19
  4. Step 4: Simplify right side
    742,683.69x = 381,982,656,183.57
  5. Step 5: Solve for x
    x = 381,982,656,183.57/742,683.69
  6. Step 6: Final answer
    x = 514,327.51

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1.5x scale

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.