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Finding the Fourth Proportional to 733.51, 1,012.26 and 423.01

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Solution

The fourth proportional to 733.51, 1,012.26 and 423.01 is: 583.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    733.51 : 1,012.26 = 423.01 : x
  2. Step 2: Convert to fraction form
    733.51/1,012.26 = 423.01/x
  3. Step 3: Cross multiply
    733.51x = 1,012.26 × 423.01
  4. Step 4: Simplify right side
    733.51x = 428,196.10
  5. Step 5: Solve for x
    x = 428,196.10/733.51
  6. Step 6: Final answer
    x = 583.76

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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.