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Finding the Fourth Proportional to 1,023.04, 1,412.48 and 674.32

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Solution

The fourth proportional to 1,023.04, 1,412.48 and 674.32 is: 931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023.04 : 1,412.48 = 674.32 : x
  2. Step 2: Convert to fraction form
    1,023.04/1,412.48 = 674.32/x
  3. Step 3: Cross multiply
    1,023.04x = 1,412.48 × 674.32
  4. Step 4: Simplify right side
    1,023.04x = 952,463.51
  5. Step 5: Solve for x
    x = 952,463.51/1,023.04
  6. Step 6: Final answer
    x = 931.01

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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.