Home / 791,055.81-1,091,852.33-451,720.89

Finding the Fourth Proportional to 791,055.81, 1,091,852.33 and 451,720.89

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Solution

The fourth proportional to 791,055.81, 1,091,852.33 and 451,720.89 is: 623,486.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,055.81 : 1,091,852.33 = 451,720.89 : x
  2. Step 2: Convert to fraction form
    791,055.81/1,091,852.33 = 451,720.89/x
  3. Step 3: Cross multiply
    791,055.81x = 1,091,852.33 × 451,720.89
  4. Step 4: Simplify right side
    791,055.81x = 493,212,503,997.57
  5. Step 5: Solve for x
    x = 493,212,503,997.57/791,055.81
  6. Step 6: Final answer
    x = 623,486.36

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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.