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Finding the Fourth Proportional to 682,992.68, 942,848.82 and 396,457.61

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Solution

The fourth proportional to 682,992.68, 942,848.82 and 396,457.61 is: 547,296.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,992.68 : 942,848.82 = 396,457.61 : x
  2. Step 2: Convert to fraction form
    682,992.68/942,848.82 = 396,457.61/x
  3. Step 3: Cross multiply
    682,992.68x = 942,848.82 × 396,457.61
  4. Step 4: Simplify right side
    682,992.68x = 373,799,589,768.52
  5. Step 5: Solve for x
    x = 373,799,589,768.52/682,992.68
  6. Step 6: Final answer
    x = 547,296.63

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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.