Home / 972,400.80-1,458,601.20-839,431.20

Finding the Fourth Proportional to 972,400.80, 1,458,601.20 and 839,431.20

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Solution

The fourth proportional to 972,400.80, 1,458,601.20 and 839,431.20 is: 1,259,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,400.80 : 1,458,601.20 = 839,431.20 : x
  2. Step 2: Convert to fraction form
    972,400.80/1,458,601.20 = 839,431.20/x
  3. Step 3: Cross multiply
    972,400.80x = 1,458,601.20 × 839,431.20
  4. Step 4: Simplify right side
    972,400.80x = 1,224,395,355,637.44
  5. Step 5: Solve for x
    x = 1,224,395,355,637.44/972,400.80
  6. Step 6: Final answer
    x = 1,259,146.80

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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.