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Finding the Fourth Proportional to 400,977.60, 601,628.40 and 176,380.80

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Solution

The fourth proportional to 400,977.60, 601,628.40 and 176,380.80 is: 264,642.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,977.60 : 601,628.40 = 176,380.80 : x
  2. Step 2: Convert to fraction form
    400,977.60/601,628.40 = 176,380.80/x
  3. Step 3: Cross multiply
    400,977.60x = 601,628.40 × 176,380.80
  4. Step 4: Simplify right side
    400,977.60x = 106,115,698,494.72
  5. Step 5: Solve for x
    x = 106,115,698,494.72/400,977.60
  6. Step 6: Final answer
    x = 264,642.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.