Home / 1,318,456-1,976,511.12-476,820.64

Finding the Fourth Proportional to 1,318,456, 1,976,511.12 and 476,820.64

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Solution

The fourth proportional to 1,318,456, 1,976,511.12 and 476,820.64 is: 714,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,456 : 1,976,511.12 = 476,820.64 : x
  2. Step 2: Convert to fraction form
    1,318,456/1,976,511.12 = 476,820.64/x
  3. Step 3: Cross multiply
    1,318,456x = 1,976,511.12 × 476,820.64
  4. Step 4: Simplify right side
    1,318,456x = 942,441,297,205.52
  5. Step 5: Solve for x
    x = 942,441,297,205.52/1,318,456
  6. Step 6: Final answer
    x = 714,806.79

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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.