Home / 790,542.90-1,090,940.13-427,958.78

Finding the Fourth Proportional to 790,542.90, 1,090,940.13 and 427,958.78

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Solution

The fourth proportional to 790,542.90, 1,090,940.13 and 427,958.78 is: 590,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,542.90 : 1,090,940.13 = 427,958.78 : x
  2. Step 2: Convert to fraction form
    790,542.90/1,090,940.13 = 427,958.78/x
  3. Step 3: Cross multiply
    790,542.90x = 1,090,940.13 × 427,958.78
  4. Step 4: Simplify right side
    790,542.90x = 466,877,401,633.14
  5. Step 5: Solve for x
    x = 466,877,401,633.14/790,542.90
  6. Step 6: Final answer
    x = 590,578.20

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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.