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Finding the Fourth Proportional to 682,840.67, 942,320.18 and 376,917.14

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Solution

The fourth proportional to 682,840.67, 942,320.18 and 376,917.14 is: 520,145.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,840.67 : 942,320.18 = 376,917.14 : x
  2. Step 2: Convert to fraction form
    682,840.67/942,320.18 = 376,917.14/x
  3. Step 3: Cross multiply
    682,840.67x = 942,320.18 × 376,917.14
  4. Step 4: Simplify right side
    682,840.67x = 355,176,622,498.28
  5. Step 5: Solve for x
    x = 355,176,622,498.28/682,840.67
  6. Step 6: Final answer
    x = 520,145.68

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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.