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Finding the Fourth Proportional to 662,676.40, 994,792.20 and 658,010.80

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Solution

The fourth proportional to 662,676.40, 994,792.20 and 658,010.80 is: 987,788.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,676.40 : 994,792.20 = 658,010.80 : x
  2. Step 2: Convert to fraction form
    662,676.40/994,792.20 = 658,010.80/x
  3. Step 3: Cross multiply
    662,676.40x = 994,792.20 × 658,010.80
  4. Step 4: Simplify right side
    662,676.40x = 654,584,011,355.76
  5. Step 5: Solve for x
    x = 654,584,011,355.76/662,676.40
  6. Step 6: Final answer
    x = 987,788.33

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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.