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Finding the Fourth Proportional to 770,218, 1,062,819.07 and 425,999.23

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Solution

The fourth proportional to 770,218, 1,062,819.07 and 425,999.23 is: 587,833.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,218 : 1,062,819.07 = 425,999.23 : x
  2. Step 2: Convert to fraction form
    770,218/1,062,819.07 = 425,999.23/x
  3. Step 3: Cross multiply
    770,218x = 1,062,819.07 × 425,999.23
  4. Step 4: Simplify right side
    770,218x = 452,760,105,449.32
  5. Step 5: Solve for x
    x = 452,760,105,449.32/770,218
  6. Step 6: Final answer
    x = 587,833.71

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1.5x scale

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.