Home / 1,512,021.60-2,268,032.40-672,213.60

Finding the Fourth Proportional to 1,512,021.60, 2,268,032.40 and 672,213.60

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Solution

The fourth proportional to 1,512,021.60, 2,268,032.40 and 672,213.60 is: 1,008,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,021.60 : 2,268,032.40 = 672,213.60 : x
  2. Step 2: Convert to fraction form
    1,512,021.60/2,268,032.40 = 672,213.60/x
  3. Step 3: Cross multiply
    1,512,021.60x = 2,268,032.40 × 672,213.60
  4. Step 4: Simplify right side
    1,512,021.60x = 1,524,602,224,520.64
  5. Step 5: Solve for x
    x = 1,524,602,224,520.64/1,512,021.60
  6. Step 6: Final answer
    x = 1,008,320.40

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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.