Home / 790,215.50-1,090,497.33-427,639.37

Finding the Fourth Proportional to 790,215.50, 1,090,497.33 and 427,639.37

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Solution

The fourth proportional to 790,215.50, 1,090,497.33 and 427,639.37 is: 590,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,215.50 : 1,090,497.33 = 427,639.37 : x
  2. Step 2: Convert to fraction form
    790,215.50/1,090,497.33 = 427,639.37/x
  3. Step 3: Cross multiply
    790,215.50x = 1,090,497.33 × 427,639.37
  4. Step 4: Simplify right side
    790,215.50x = 466,339,585,735.40
  5. Step 5: Solve for x
    x = 466,339,585,735.40/790,215.50
  6. Step 6: Final answer
    x = 590,142.29

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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.