Home / 643,414.06-964,493.54-306,364.15

Finding the Fourth Proportional to 643,414.06, 964,493.54 and 306,364.15

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Solution

The fourth proportional to 643,414.06, 964,493.54 and 306,364.15 is: 459,247.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,414.06 : 964,493.54 = 306,364.15 : x
  2. Step 2: Convert to fraction form
    643,414.06/964,493.54 = 306,364.15/x
  3. Step 3: Cross multiply
    643,414.06x = 964,493.54 × 306,364.15
  4. Step 4: Simplify right side
    643,414.06x = 295,486,243,562.59
  5. Step 5: Solve for x
    x = 295,486,243,562.59/643,414.06
  6. Step 6: Final answer
    x = 459,247.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.