Home / 1,117,813.80-1,677,833.10-518,910.60

Finding the Fourth Proportional to 1,117,813.80, 1,677,833.10 and 518,910.60

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Solution

The fourth proportional to 1,117,813.80, 1,677,833.10 and 518,910.60 is: 778,882.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,813.80 : 1,677,833.10 = 518,910.60 : x
  2. Step 2: Convert to fraction form
    1,117,813.80/1,677,833.10 = 518,910.60/x
  3. Step 3: Cross multiply
    1,117,813.80x = 1,677,833.10 × 518,910.60
  4. Step 4: Simplify right side
    1,117,813.80x = 870,645,380,620.86
  5. Step 5: Solve for x
    x = 870,645,380,620.86/1,117,813.80
  6. Step 6: Final answer
    x = 778,882.30

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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.