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Finding the Fourth Proportional to 455,048.04, 682,040.48 and 342,366.18

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Solution

The fourth proportional to 455,048.04, 682,040.48 and 342,366.18 is: 513,149.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,048.04 : 682,040.48 = 342,366.18 : x
  2. Step 2: Convert to fraction form
    455,048.04/682,040.48 = 342,366.18/x
  3. Step 3: Cross multiply
    455,048.04x = 682,040.48 × 342,366.18
  4. Step 4: Simplify right side
    455,048.04x = 233,507,593,742.97
  5. Step 5: Solve for x
    x = 233,507,593,742.97/455,048.04
  6. Step 6: Final answer
    x = 513,149.32

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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.