Home / 689,212.89-1,033,702.70-190,460.25

Finding the Fourth Proportional to 689,212.89, 1,033,702.70 and 190,460.25

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Solution

The fourth proportional to 689,212.89, 1,033,702.70 and 190,460.25 is: 285,658.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,212.89 : 1,033,702.70 = 190,460.25 : x
  2. Step 2: Convert to fraction form
    689,212.89/1,033,702.70 = 190,460.25/x
  3. Step 3: Cross multiply
    689,212.89x = 1,033,702.70 × 190,460.25
  4. Step 4: Simplify right side
    689,212.89x = 196,879,273,715.37
  5. Step 5: Solve for x
    x = 196,879,273,715.37/689,212.89
  6. Step 6: Final answer
    x = 285,658.14

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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.