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Finding the Fourth Proportional to 837,664.44, 1,155,978.54 and 455,692.92

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Solution

The fourth proportional to 837,664.44, 1,155,978.54 and 455,692.92 is: 628,857.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,664.44 : 1,155,978.54 = 455,692.92 : x
  2. Step 2: Convert to fraction form
    837,664.44/1,155,978.54 = 455,692.92/x
  3. Step 3: Cross multiply
    837,664.44x = 1,155,978.54 × 455,692.92
  4. Step 4: Simplify right side
    837,664.44x = 526,771,236,349.94
  5. Step 5: Solve for x
    x = 526,771,236,349.94/837,664.44
  6. Step 6: Final answer
    x = 628,857.11

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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.