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Finding the Fourth Proportional to 450,994.11, 622,381.93 and 257,397.94

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Solution

The fourth proportional to 450,994.11, 622,381.93 and 257,397.94 is: 355,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,994.11 : 622,381.93 = 257,397.94 : x
  2. Step 2: Convert to fraction form
    450,994.11/622,381.93 = 257,397.94/x
  3. Step 3: Cross multiply
    450,994.11x = 622,381.93 × 257,397.94
  4. Step 4: Simplify right side
    450,994.11x = 160,199,826,675.22
  5. Step 5: Solve for x
    x = 160,199,826,675.22/450,994.11
  6. Step 6: Final answer
    x = 355,214.90

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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.