Home / 1,315,936.60-1,973,904.90-890,783.80

Finding the Fourth Proportional to 1,315,936.60, 1,973,904.90 and 890,783.80

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Solution

The fourth proportional to 1,315,936.60, 1,973,904.90 and 890,783.80 is: 1,336,175.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,936.60 : 1,973,904.90 = 890,783.80 : x
  2. Step 2: Convert to fraction form
    1,315,936.60/1,973,904.90 = 890,783.80/x
  3. Step 3: Cross multiply
    1,315,936.60x = 1,973,904.90 × 890,783.80
  4. Step 4: Simplify right side
    1,315,936.60x = 1,758,322,507,660.62
  5. Step 5: Solve for x
    x = 1,758,322,507,660.62/1,315,936.60
  6. Step 6: Final answer
    x = 1,336,175.70

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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.