Home / 719.03-1,077.57-440.51

Finding the Fourth Proportional to 719.03, 1,077.57 and 440.51

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Solution

The fourth proportional to 719.03, 1,077.57 and 440.51 is: 660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    719.03 : 1,077.57 = 440.51 : x
  2. Step 2: Convert to fraction form
    719.03/1,077.57 = 440.51/x
  3. Step 3: Cross multiply
    719.03x = 1,077.57 × 440.51
  4. Step 4: Simplify right side
    719.03x = 474,674.97
  5. Step 5: Solve for x
    x = 474,674.97/719.03
  6. Step 6: Final answer
    x = 660.16

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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.