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Finding the Fourth Proportional to 455,428.51, 628,546.76 and 264,441.90

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Solution

The fourth proportional to 455,428.51, 628,546.76 and 264,441.90 is: 364,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,428.51 : 628,546.76 = 264,441.90 : x
  2. Step 2: Convert to fraction form
    455,428.51/628,546.76 = 264,441.90/x
  3. Step 3: Cross multiply
    455,428.51x = 628,546.76 × 264,441.90
  4. Step 4: Simplify right side
    455,428.51x = 166,214,101,339.59
  5. Step 5: Solve for x
    x = 166,214,101,339.59/455,428.51
  6. Step 6: Final answer
    x = 364,962.00

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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.