Home / 3,118,058.70-4,676,431.95-1,321,000.80

Finding the Fourth Proportional to 3,118,058.70, 4,676,431.95 and 1,321,000.80

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Solution

The fourth proportional to 3,118,058.70, 4,676,431.95 and 1,321,000.80 is: 1,981,223.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,058.70 : 4,676,431.95 = 1,321,000.80 : x
  2. Step 2: Convert to fraction form
    3,118,058.70/4,676,431.95 = 1,321,000.80/x
  3. Step 3: Cross multiply
    3,118,058.70x = 4,676,431.95 × 1,321,000.80
  4. Step 4: Simplify right side
    3,118,058.70x = 6,177,570,347,095.56
  5. Step 5: Solve for x
    x = 6,177,570,347,095.56/3,118,058.70
  6. Step 6: Final answer
    x = 1,981,223.24

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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.