Home / 1,208,735.20-1,813,102.80-788,485.60

Finding the Fourth Proportional to 1,208,735.20, 1,813,102.80 and 788,485.60

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Solution

The fourth proportional to 1,208,735.20, 1,813,102.80 and 788,485.60 is: 1,182,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,735.20 : 1,813,102.80 = 788,485.60 : x
  2. Step 2: Convert to fraction form
    1,208,735.20/1,813,102.80 = 788,485.60/x
  3. Step 3: Cross multiply
    1,208,735.20x = 1,813,102.80 × 788,485.60
  4. Step 4: Simplify right side
    1,208,735.20x = 1,429,605,449,119.68
  5. Step 5: Solve for x
    x = 1,429,605,449,119.68/1,208,735.20
  6. Step 6: Final answer
    x = 1,182,728.40

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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.