Home / 1,439,786.58-2,160,035.08-428,904.60

Finding the Fourth Proportional to 1,439,786.58, 2,160,035.08 and 428,904.60

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Solution

The fourth proportional to 1,439,786.58, 2,160,035.08 and 428,904.60 is: 643,462.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,786.58 : 2,160,035.08 = 428,904.60 : x
  2. Step 2: Convert to fraction form
    1,439,786.58/2,160,035.08 = 428,904.60/x
  3. Step 3: Cross multiply
    1,439,786.58x = 2,160,035.08 × 428,904.60
  4. Step 4: Simplify right side
    1,439,786.58x = 926,448,991,413.83
  5. Step 5: Solve for x
    x = 926,448,991,413.83/1,439,786.58
  6. Step 6: Final answer
    x = 643,462.72

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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.