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Finding the Fourth Proportional to 450,367.38, 620,792.37 and 354,722.58

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Solution

The fourth proportional to 450,367.38, 620,792.37 and 354,722.58 is: 488,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,367.38 : 620,792.37 = 354,722.58 : x
  2. Step 2: Convert to fraction form
    450,367.38/620,792.37 = 354,722.58/x
  3. Step 3: Cross multiply
    450,367.38x = 620,792.37 × 354,722.58
  4. Step 4: Simplify right side
    450,367.38x = 220,209,071,130.72
  5. Step 5: Solve for x
    x = 220,209,071,130.72/450,367.38
  6. Step 6: Final answer
    x = 488,954.31

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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.