Home / 825,643.60-1,238,465.40-264,734.80

Finding the Fourth Proportional to 825,643.60, 1,238,465.40 and 264,734.80

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Solution

The fourth proportional to 825,643.60, 1,238,465.40 and 264,734.80 is: 397,102.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,643.60 : 1,238,465.40 = 264,734.80 : x
  2. Step 2: Convert to fraction form
    825,643.60/1,238,465.40 = 264,734.80/x
  3. Step 3: Cross multiply
    825,643.60x = 1,238,465.40 × 264,734.80
  4. Step 4: Simplify right side
    825,643.60x = 327,864,889,975.92
  5. Step 5: Solve for x
    x = 327,864,889,975.92/825,643.60
  6. Step 6: Final answer
    x = 397,102.20

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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.