Home / 839,915.21-1,259,877.57-208,829.03

Finding the Fourth Proportional to 839,915.21, 1,259,877.57 and 208,829.03

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Solution

The fourth proportional to 839,915.21, 1,259,877.57 and 208,829.03 is: 313,244.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,915.21 : 1,259,877.57 = 208,829.03 : x
  2. Step 2: Convert to fraction form
    839,915.21/1,259,877.57 = 208,829.03/x
  3. Step 3: Cross multiply
    839,915.21x = 1,259,877.57 × 208,829.03
  4. Step 4: Simplify right side
    839,915.21x = 263,099,004,562.47
  5. Step 5: Solve for x
    x = 263,099,004,562.47/839,915.21
  6. Step 6: Final answer
    x = 313,244.72

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1.5x scale

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.