Home / 858,179.40-1,287,269.10-818,813.40

Finding the Fourth Proportional to 858,179.40, 1,287,269.10 and 818,813.40

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Solution

The fourth proportional to 858,179.40, 1,287,269.10 and 818,813.40 is: 1,228,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,179.40 : 1,287,269.10 = 818,813.40 : x
  2. Step 2: Convert to fraction form
    858,179.40/1,287,269.10 = 818,813.40/x
  3. Step 3: Cross multiply
    858,179.40x = 1,287,269.10 × 818,813.40
  4. Step 4: Simplify right side
    858,179.40x = 1,054,033,188,485.94
  5. Step 5: Solve for x
    x = 1,054,033,188,485.94/858,179.40
  6. Step 6: Final answer
    x = 1,228,220.10

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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.