Home / 858,164.40-1,287,246.60-818,798.40

Finding the Fourth Proportional to 858,164.40, 1,287,246.60 and 818,798.40

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Solution

The fourth proportional to 858,164.40, 1,287,246.60 and 818,798.40 is: 1,228,197.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,164.40 : 1,287,246.60 = 818,798.40 : x
  2. Step 2: Convert to fraction form
    858,164.40/1,287,246.60 = 818,798.40/x
  3. Step 3: Cross multiply
    858,164.40x = 1,287,246.60 × 818,798.40
  4. Step 4: Simplify right side
    858,164.40x = 1,053,995,456,485.44
  5. Step 5: Solve for x
    x = 1,053,995,456,485.44/858,164.40
  6. Step 6: Final answer
    x = 1,228,197.60

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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.