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Finding the Fourth Proportional to 455,762.63, 628,965.11 and 251,826.69

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Solution

The fourth proportional to 455,762.63, 628,965.11 and 251,826.69 is: 347,527.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,762.63 : 628,965.11 = 251,826.69 : x
  2. Step 2: Convert to fraction form
    455,762.63/628,965.11 = 251,826.69/x
  3. Step 3: Cross multiply
    455,762.63x = 628,965.11 × 251,826.69
  4. Step 4: Simplify right side
    455,762.63x = 158,390,199,810.52
  5. Step 5: Solve for x
    x = 158,390,199,810.52/455,762.63
  6. Step 6: Final answer
    x = 347,527.84

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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.