Home / 859,801.70-1,289,702.55-268,825.70

Finding the Fourth Proportional to 859,801.70, 1,289,702.55 and 268,825.70

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Solution

The fourth proportional to 859,801.70, 1,289,702.55 and 268,825.70 is: 403,238.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,801.70 : 1,289,702.55 = 268,825.70 : x
  2. Step 2: Convert to fraction form
    859,801.70/1,289,702.55 = 268,825.70/x
  3. Step 3: Cross multiply
    859,801.70x = 1,289,702.55 × 268,825.70
  4. Step 4: Simplify right side
    859,801.70x = 346,705,190,795.54
  5. Step 5: Solve for x
    x = 346,705,190,795.54/859,801.70
  6. Step 6: Final answer
    x = 403,238.55

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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.