Home / 971,401.73-1,456,220.51-339,971.09

Finding the Fourth Proportional to 971,401.73, 1,456,220.51 and 339,971.09

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Solution

The fourth proportional to 971,401.73, 1,456,220.51 and 339,971.09 is: 509,647.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,401.73 : 1,456,220.51 = 339,971.09 : x
  2. Step 2: Convert to fraction form
    971,401.73/1,456,220.51 = 339,971.09/x
  3. Step 3: Cross multiply
    971,401.73x = 1,456,220.51 × 339,971.09
  4. Step 4: Simplify right side
    971,401.73x = 495,072,876,005.75
  5. Step 5: Solve for x
    x = 495,072,876,005.75/971,401.73
  6. Step 6: Final answer
    x = 509,647.92

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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.