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Finding the Fourth Proportional to 682,639.94, 942,036.54 and 376,719.14

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Solution

The fourth proportional to 682,639.94, 942,036.54 and 376,719.14 is: 519,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,639.94 : 942,036.54 = 376,719.14 : x
  2. Step 2: Convert to fraction form
    682,639.94/942,036.54 = 376,719.14/x
  3. Step 3: Cross multiply
    682,639.94x = 942,036.54 × 376,719.14
  4. Step 4: Simplify right side
    682,639.94x = 354,883,195,197.38
  5. Step 5: Solve for x
    x = 354,883,195,197.38/682,639.94
  6. Step 6: Final answer
    x = 519,868.78

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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.