Home / 948,015.80-1,422,020.46-316,928.60

Finding the Fourth Proportional to 948,015.80, 1,422,020.46 and 316,928.60

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Solution

The fourth proportional to 948,015.80, 1,422,020.46 and 316,928.60 is: 475,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,015.80 : 1,422,020.46 = 316,928.60 : x
  2. Step 2: Convert to fraction form
    948,015.80/1,422,020.46 = 316,928.60/x
  3. Step 3: Cross multiply
    948,015.80x = 1,422,020.46 × 316,928.60
  4. Step 4: Simplify right side
    948,015.80x = 450,678,953,559.16
  5. Step 5: Solve for x
    x = 450,678,953,559.16/948,015.80
  6. Step 6: Final answer
    x = 475,391.82

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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.