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Finding the Fourth Proportional to 486,071.67, 670,671.52 and 282,004.39

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Solution

The fourth proportional to 486,071.67, 670,671.52 and 282,004.39 is: 389,103.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,071.67 : 670,671.52 = 282,004.39 : x
  2. Step 2: Convert to fraction form
    486,071.67/670,671.52 = 282,004.39/x
  3. Step 3: Cross multiply
    486,071.67x = 670,671.52 × 282,004.39
  4. Step 4: Simplify right side
    486,071.67x = 189,132,312,887.97
  5. Step 5: Solve for x
    x = 189,132,312,887.97/486,071.67
  6. Step 6: Final answer
    x = 389,103.76

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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.