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Finding the Fourth Proportional to 867.09, 1,301.58 and 450.51

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Solution

The fourth proportional to 867.09, 1,301.58 and 450.51 is: 676.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.09 : 1,301.58 = 450.51 : x
  2. Step 2: Convert to fraction form
    867.09/1,301.58 = 450.51/x
  3. Step 3: Cross multiply
    867.09x = 1,301.58 × 450.51
  4. Step 4: Simplify right side
    867.09x = 586,374.81
  5. Step 5: Solve for x
    x = 586,374.81/867.09
  6. Step 6: Final answer
    x = 676.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.