Home / 858,174.40-1,287,261.60-818,808.40

Finding the Fourth Proportional to 858,174.40, 1,287,261.60 and 818,808.40

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Solution

The fourth proportional to 858,174.40, 1,287,261.60 and 818,808.40 is: 1,228,212.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,174.40 : 1,287,261.60 = 818,808.40 : x
  2. Step 2: Convert to fraction form
    858,174.40/1,287,261.60 = 818,808.40/x
  3. Step 3: Cross multiply
    858,174.40x = 1,287,261.60 × 818,808.40
  4. Step 4: Simplify right side
    858,174.40x = 1,054,020,611,077.44
  5. Step 5: Solve for x
    x = 1,054,020,611,077.44/858,174.40
  6. Step 6: Final answer
    x = 1,228,212.60

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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.