Home / 1,098,647.28-1,648,080.77-378,894.18

Finding the Fourth Proportional to 1,098,647.28, 1,648,080.77 and 378,894.18

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Solution

The fourth proportional to 1,098,647.28, 1,648,080.77 and 378,894.18 is: 568,379.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,647.28 : 1,648,080.77 = 378,894.18 : x
  2. Step 2: Convert to fraction form
    1,098,647.28/1,648,080.77 = 378,894.18/x
  3. Step 3: Cross multiply
    1,098,647.28x = 1,648,080.77 × 378,894.18
  4. Step 4: Simplify right side
    1,098,647.28x = 624,448,211,922.92
  5. Step 5: Solve for x
    x = 624,448,211,922.92/1,098,647.28
  6. Step 6: Final answer
    x = 568,379.15

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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.