Home / 839,292.80-1,259,311.26-439,838.60

Finding the Fourth Proportional to 839,292.80, 1,259,311.26 and 439,838.60

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Solution

The fourth proportional to 839,292.80, 1,259,311.26 and 439,838.60 is: 659,952.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,292.80 : 1,259,311.26 = 439,838.60 : x
  2. Step 2: Convert to fraction form
    839,292.80/1,259,311.26 = 439,838.60/x
  3. Step 3: Cross multiply
    839,292.80x = 1,259,311.26 × 439,838.60
  4. Step 4: Simplify right side
    839,292.80x = 553,893,701,562.64
  5. Step 5: Solve for x
    x = 553,893,701,562.64/839,292.80
  6. Step 6: Final answer
    x = 659,952.88

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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.