Home / 1,291,639.60-1,936,584.60-684,528.40

Finding the Fourth Proportional to 1,291,639.60, 1,936,584.60 and 684,528.40

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Solution

The fourth proportional to 1,291,639.60, 1,936,584.60 and 684,528.40 is: 1,026,328.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,639.60 : 1,936,584.60 = 684,528.40 : x
  2. Step 2: Convert to fraction form
    1,291,639.60/1,936,584.60 = 684,528.40/x
  3. Step 3: Cross multiply
    1,291,639.60x = 1,936,584.60 × 684,528.40
  4. Step 4: Simplify right side
    1,291,639.60x = 1,325,647,157,702.64
  5. Step 5: Solve for x
    x = 1,325,647,157,702.64/1,291,639.60
  6. Step 6: Final answer
    x = 1,026,328.98

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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.