Home / 1,431,587.52-2,147,731.92-712,268.64

Finding the Fourth Proportional to 1,431,587.52, 2,147,731.92 and 712,268.64

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Solution

The fourth proportional to 1,431,587.52, 2,147,731.92 and 712,268.64 is: 1,068,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,587.52 : 2,147,731.92 = 712,268.64 : x
  2. Step 2: Convert to fraction form
    1,431,587.52/2,147,731.92 = 712,268.64/x
  3. Step 3: Cross multiply
    1,431,587.52x = 2,147,731.92 × 712,268.64
  4. Step 4: Simplify right side
    1,431,587.52x = 1,529,762,093,742.99
  5. Step 5: Solve for x
    x = 1,529,762,093,742.99/1,431,587.52
  6. Step 6: Final answer
    x = 1,068,577.42

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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.