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Finding the Fourth Proportional to 561,098.46, 774,314.65 and 306,449.65

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Solution

The fourth proportional to 561,098.46, 774,314.65 and 306,449.65 is: 422,899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,098.46 : 774,314.65 = 306,449.65 : x
  2. Step 2: Convert to fraction form
    561,098.46/774,314.65 = 306,449.65/x
  3. Step 3: Cross multiply
    561,098.46x = 774,314.65 × 306,449.65
  4. Step 4: Simplify right side
    561,098.46x = 237,288,453,482.37
  5. Step 5: Solve for x
    x = 237,288,453,482.37/561,098.46
  6. Step 6: Final answer
    x = 422,899.85

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.