Home / 979,815.37-1,469,728.02-305,840.18

Finding the Fourth Proportional to 979,815.37, 1,469,728.02 and 305,840.18

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Solution

The fourth proportional to 979,815.37, 1,469,728.02 and 305,840.18 is: 458,761.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,815.37 : 1,469,728.02 = 305,840.18 : x
  2. Step 2: Convert to fraction form
    979,815.37/1,469,728.02 = 305,840.18/x
  3. Step 3: Cross multiply
    979,815.37x = 1,469,728.02 × 305,840.18
  4. Step 4: Simplify right side
    979,815.37x = 449,501,880,294.93
  5. Step 5: Solve for x
    x = 449,501,880,294.93/979,815.37
  6. Step 6: Final answer
    x = 458,761.82

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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.