Home / 790,932.56-1,091,480.67-428,348.07

Finding the Fourth Proportional to 790,932.56, 1,091,480.67 and 428,348.07

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Solution

The fourth proportional to 790,932.56, 1,091,480.67 and 428,348.07 is: 591,116.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,932.56 : 1,091,480.67 = 428,348.07 : x
  2. Step 2: Convert to fraction form
    790,932.56/1,091,480.67 = 428,348.07/x
  3. Step 3: Cross multiply
    790,932.56x = 1,091,480.67 × 428,348.07
  4. Step 4: Simplify right side
    790,932.56x = 467,533,638,436.81
  5. Step 5: Solve for x
    x = 467,533,638,436.81/790,932.56
  6. Step 6: Final answer
    x = 591,116.95

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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.