Home / 1,207,982.04-1,666,972.77-664,113.90

Finding the Fourth Proportional to 1,207,982.04, 1,666,972.77 and 664,113.90

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Solution

The fourth proportional to 1,207,982.04, 1,666,972.77 and 664,113.90 is: 916,453.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,982.04 : 1,666,972.77 = 664,113.90 : x
  2. Step 2: Convert to fraction form
    1,207,982.04/1,666,972.77 = 664,113.90/x
  3. Step 3: Cross multiply
    1,207,982.04x = 1,666,972.77 × 664,113.90
  4. Step 4: Simplify right side
    1,207,982.04x = 1,107,059,787,478.50
  5. Step 5: Solve for x
    x = 1,107,059,787,478.50/1,207,982.04
  6. Step 6: Final answer
    x = 916,453.85

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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.