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Finding the Fourth Proportional to 455,509.28, 628,556.28 and 264,563.12

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Solution

The fourth proportional to 455,509.28, 628,556.28 and 264,563.12 is: 365,070.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,509.28 : 628,556.28 = 264,563.12 : x
  2. Step 2: Convert to fraction form
    455,509.28/628,556.28 = 264,563.12/x
  3. Step 3: Cross multiply
    455,509.28x = 628,556.28 × 264,563.12
  4. Step 4: Simplify right side
    455,509.28x = 166,292,810,532.39
  5. Step 5: Solve for x
    x = 166,292,810,532.39/455,509.28
  6. Step 6: Final answer
    x = 365,070.08

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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.