Home / 820,100.60-1,229,153.50-580,283.60

Finding the Fourth Proportional to 820,100.60, 1,229,153.50 and 580,283.60

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Solution

The fourth proportional to 820,100.60, 1,229,153.50 and 580,283.60 is: 869,719.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,100.60 : 1,229,153.50 = 580,283.60 : x
  2. Step 2: Convert to fraction form
    820,100.60/1,229,153.50 = 580,283.60/x
  3. Step 3: Cross multiply
    820,100.60x = 1,229,153.50 × 580,283.60
  4. Step 4: Simplify right side
    820,100.60x = 713,257,617,932.60
  5. Step 5: Solve for x
    x = 713,257,617,932.60/820,100.60
  6. Step 6: Final answer
    x = 869,719.66

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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.