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Finding the Fourth Proportional to 848,899, 1,171,647 and 486,565.72

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Solution

The fourth proportional to 848,899, 1,171,647 and 486,565.72 is: 671,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,899 : 1,171,647 = 486,565.72 : x
  2. Step 2: Convert to fraction form
    848,899/1,171,647 = 486,565.72/x
  3. Step 3: Cross multiply
    848,899x = 1,171,647 × 486,565.72
  4. Step 4: Simplify right side
    848,899x = 570,083,266,140.84
  5. Step 5: Solve for x
    x = 570,083,266,140.84/848,899
  6. Step 6: Final answer
    x = 671,556.06

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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.