Home / 482,038.44-664,867.60-318,505.51

Finding the Fourth Proportional to 482,038.44, 664,867.60 and 318,505.51

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Solution

The fourth proportional to 482,038.44, 664,867.60 and 318,505.51 is: 439,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,038.44 : 664,867.60 = 318,505.51 : x
  2. Step 2: Convert to fraction form
    482,038.44/664,867.60 = 318,505.51/x
  3. Step 3: Cross multiply
    482,038.44x = 664,867.60 × 318,505.51
  4. Step 4: Simplify right side
    482,038.44x = 211,763,994,020.48
  5. Step 5: Solve for x
    x = 211,763,994,020.48/482,038.44
  6. Step 6: Final answer
    x = 439,309.35

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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.