Home / 790,975.98-1,091,541.42-428,391.54

Finding the Fourth Proportional to 790,975.98, 1,091,541.42 and 428,391.54

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Solution

The fourth proportional to 790,975.98, 1,091,541.42 and 428,391.54 is: 591,177.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,975.98 : 1,091,541.42 = 428,391.54 : x
  2. Step 2: Convert to fraction form
    790,975.98/1,091,541.42 = 428,391.54/x
  3. Step 3: Cross multiply
    790,975.98x = 1,091,541.42 × 428,391.54
  4. Step 4: Simplify right side
    790,975.98x = 467,607,109,887.59
  5. Step 5: Solve for x
    x = 467,607,109,887.59/790,975.98
  6. Step 6: Final answer
    x = 591,177.38

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1.5x scale

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.