Home / 762,280.10-1,143,544.47-312,880.34

Finding the Fourth Proportional to 762,280.10, 1,143,544.47 and 312,880.34

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Solution

The fourth proportional to 762,280.10, 1,143,544.47 and 312,880.34 is: 469,371.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,280.10 : 1,143,544.47 = 312,880.34 : x
  2. Step 2: Convert to fraction form
    762,280.10/1,143,544.47 = 312,880.34/x
  3. Step 3: Cross multiply
    762,280.10x = 1,143,544.47 × 312,880.34
  4. Step 4: Simplify right side
    762,280.10x = 357,792,582,578.72
  5. Step 5: Solve for x
    x = 357,792,582,578.72/762,280.10
  6. Step 6: Final answer
    x = 469,371.54

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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.