Home / 858,177.40-1,287,266.10-818,811.40

Finding the Fourth Proportional to 858,177.40, 1,287,266.10 and 818,811.40

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Solution

The fourth proportional to 858,177.40, 1,287,266.10 and 818,811.40 is: 1,228,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,177.40 : 1,287,266.10 = 818,811.40 : x
  2. Step 2: Convert to fraction form
    858,177.40/1,287,266.10 = 818,811.40/x
  3. Step 3: Cross multiply
    858,177.40x = 1,287,266.10 × 818,811.40
  4. Step 4: Simplify right side
    858,177.40x = 1,054,028,157,513.54
  5. Step 5: Solve for x
    x = 1,054,028,157,513.54/858,177.40
  6. Step 6: Final answer
    x = 1,228,217.10

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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.