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Finding the Fourth Proportional to 483,081.43, 665,555.66 and 373,810

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Solution

The fourth proportional to 483,081.43, 665,555.66 and 373,810 is: 515,009.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,081.43 : 665,555.66 = 373,810 : x
  2. Step 2: Convert to fraction form
    483,081.43/665,555.66 = 373,810/x
  3. Step 3: Cross multiply
    483,081.43x = 665,555.66 × 373,810
  4. Step 4: Simplify right side
    483,081.43x = 248,791,359,395.55
  5. Step 5: Solve for x
    x = 248,791,359,395.55/483,081.43
  6. Step 6: Final answer
    x = 515,009.16

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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.