Home / 863,386.80-1,295,080.20-684,927.60

Finding the Fourth Proportional to 863,386.80, 1,295,080.20 and 684,927.60

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Solution

The fourth proportional to 863,386.80, 1,295,080.20 and 684,927.60 is: 1,027,391.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,386.80 : 1,295,080.20 = 684,927.60 : x
  2. Step 2: Convert to fraction form
    863,386.80/1,295,080.20 = 684,927.60/x
  3. Step 3: Cross multiply
    863,386.80x = 1,295,080.20 × 684,927.60
  4. Step 4: Simplify right side
    863,386.80x = 887,036,173,193.52
  5. Step 5: Solve for x
    x = 887,036,173,193.52/863,386.80
  6. Step 6: Final answer
    x = 1,027,391.40

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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.