Home / 463,661.03-639,908.98-282,399.28

Finding the Fourth Proportional to 463,661.03, 639,908.98 and 282,399.28

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Solution

The fourth proportional to 463,661.03, 639,908.98 and 282,399.28 is: 389,745.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,661.03 : 639,908.98 = 282,399.28 : x
  2. Step 2: Convert to fraction form
    463,661.03/639,908.98 = 282,399.28/x
  3. Step 3: Cross multiply
    463,661.03x = 639,908.98 × 282,399.28
  4. Step 4: Simplify right side
    463,661.03x = 180,709,832,911.76
  5. Step 5: Solve for x
    x = 180,709,832,911.76/463,661.03
  6. Step 6: Final answer
    x = 389,745.57

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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.