Home / 420,637.40-580,546.24-267,515.94

Finding the Fourth Proportional to 420,637.40, 580,546.24 and 267,515.94

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Solution

The fourth proportional to 420,637.40, 580,546.24 and 267,515.94 is: 369,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,637.40 : 580,546.24 = 267,515.94 : x
  2. Step 2: Convert to fraction form
    420,637.40/580,546.24 = 267,515.94/x
  3. Step 3: Cross multiply
    420,637.40x = 580,546.24 × 267,515.94
  4. Step 4: Simplify right side
    420,637.40x = 155,305,373,107.07
  5. Step 5: Solve for x
    x = 155,305,373,107.07/420,637.40
  6. Step 6: Final answer
    x = 369,214.37

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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.