Home / 790,845.31-1,091,367.10-428,269.56

Finding the Fourth Proportional to 790,845.31, 1,091,367.10 and 428,269.56

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Solution

The fourth proportional to 790,845.31, 1,091,367.10 and 428,269.56 is: 591,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,845.31 : 1,091,367.10 = 428,269.56 : x
  2. Step 2: Convert to fraction form
    790,845.31/1,091,367.10 = 428,269.56/x
  3. Step 3: Cross multiply
    790,845.31x = 1,091,367.10 × 428,269.56
  4. Step 4: Simplify right side
    790,845.31x = 467,399,307,715.48
  5. Step 5: Solve for x
    x = 467,399,307,715.48/790,845.31
  6. Step 6: Final answer
    x = 591,012.30

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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.