Home / 1,393,167.63-1,922,459.34-772,992.75

Finding the Fourth Proportional to 1,393,167.63, 1,922,459.34 and 772,992.75

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Solution

The fourth proportional to 1,393,167.63, 1,922,459.34 and 772,992.75 is: 1,066,667.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,167.63 : 1,922,459.34 = 772,992.75 : x
  2. Step 2: Convert to fraction form
    1,393,167.63/1,922,459.34 = 772,992.75/x
  3. Step 3: Cross multiply
    1,393,167.63x = 1,922,459.34 × 772,992.75
  4. Step 4: Simplify right side
    1,393,167.63x = 1,486,047,131,989.79
  5. Step 5: Solve for x
    x = 1,486,047,131,989.79/1,393,167.63
  6. Step 6: Final answer
    x = 1,066,667.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.