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Finding the Fourth Proportional to 450,403.39, 621,495.43 and 269,076.94

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Solution

The fourth proportional to 450,403.39, 621,495.43 and 269,076.94 is: 371,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,403.39 : 621,495.43 = 269,076.94 : x
  2. Step 2: Convert to fraction form
    450,403.39/621,495.43 = 269,076.94/x
  3. Step 3: Cross multiply
    450,403.39x = 621,495.43 × 269,076.94
  4. Step 4: Simplify right side
    450,403.39x = 167,230,087,815.51
  5. Step 5: Solve for x
    x = 167,230,087,815.51/450,403.39
  6. Step 6: Final answer
    x = 371,289.59

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1.5x scale

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.