Home / 839,284.80-1,259,299.28-439,830.60

Finding the Fourth Proportional to 839,284.80, 1,259,299.28 and 439,830.60

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Solution

The fourth proportional to 839,284.80, 1,259,299.28 and 439,830.60 is: 659,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,284.80 : 1,259,299.28 = 439,830.60 : x
  2. Step 2: Convert to fraction form
    839,284.80/1,259,299.28 = 439,830.60/x
  3. Step 3: Cross multiply
    839,284.80x = 1,259,299.28 × 439,830.60
  4. Step 4: Simplify right side
    839,284.80x = 553,878,357,901.97
  5. Step 5: Solve for x
    x = 553,878,357,901.97/839,284.80
  6. Step 6: Final answer
    x = 659,940.89

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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.