Home / 670,469.78-1,005,702.06-271,105.76

Finding the Fourth Proportional to 670,469.78, 1,005,702.06 and 271,105.76

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Solution

The fourth proportional to 670,469.78, 1,005,702.06 and 271,105.76 is: 406,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,469.78 : 1,005,702.06 = 271,105.76 : x
  2. Step 2: Convert to fraction form
    670,469.78/1,005,702.06 = 271,105.76/x
  3. Step 3: Cross multiply
    670,469.78x = 1,005,702.06 × 271,105.76
  4. Step 4: Simplify right side
    670,469.78x = 272,651,621,309.87
  5. Step 5: Solve for x
    x = 272,651,621,309.87/670,469.78
  6. Step 6: Final answer
    x = 406,657.58

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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.