Home / 668,215.20-1,002,308.40-445,005.60

Finding the Fourth Proportional to 668,215.20, 1,002,308.40 and 445,005.60

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Solution

The fourth proportional to 668,215.20, 1,002,308.40 and 445,005.60 is: 667,498.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,215.20 : 1,002,308.40 = 445,005.60 : x
  2. Step 2: Convert to fraction form
    668,215.20/1,002,308.40 = 445,005.60/x
  3. Step 3: Cross multiply
    668,215.20x = 1,002,308.40 × 445,005.60
  4. Step 4: Simplify right side
    668,215.20x = 446,032,850,927.04
  5. Step 5: Solve for x
    x = 446,032,850,927.04/668,215.20
  6. Step 6: Final answer
    x = 667,498.81

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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.