Home / 791,222.75-1,091,886.08-428,655.81

Finding the Fourth Proportional to 791,222.75, 1,091,886.08 and 428,655.81

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Solution

The fourth proportional to 791,222.75, 1,091,886.08 and 428,655.81 is: 591,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,222.75 : 1,091,886.08 = 428,655.81 : x
  2. Step 2: Convert to fraction form
    791,222.75/1,091,886.08 = 428,655.81/x
  3. Step 3: Cross multiply
    791,222.75x = 1,091,886.08 × 428,655.81
  4. Step 4: Simplify right side
    791,222.75x = 468,043,314,001.42
  5. Step 5: Solve for x
    x = 468,043,314,001.42/791,222.75
  6. Step 6: Final answer
    x = 591,544.31

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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.