Home / 809,870.40-1,214,805.60-652,406.40

Finding the Fourth Proportional to 809,870.40, 1,214,805.60 and 652,406.40

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Solution

The fourth proportional to 809,870.40, 1,214,805.60 and 652,406.40 is: 978,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,870.40 : 1,214,805.60 = 652,406.40 : x
  2. Step 2: Convert to fraction form
    809,870.40/1,214,805.60 = 652,406.40/x
  3. Step 3: Cross multiply
    809,870.40x = 1,214,805.60 × 652,406.40
  4. Step 4: Simplify right side
    809,870.40x = 792,546,948,195.84
  5. Step 5: Solve for x
    x = 792,546,948,195.84/809,870.40
  6. Step 6: Final answer
    x = 978,609.60

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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.