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Finding the Fourth Proportional to 450,477.84, 621,389.15 and 297,516.33

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Solution

The fourth proportional to 450,477.84, 621,389.15 and 297,516.33 is: 410,394.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,477.84 : 621,389.15 = 297,516.33 : x
  2. Step 2: Convert to fraction form
    450,477.84/621,389.15 = 297,516.33/x
  3. Step 3: Cross multiply
    450,477.84x = 621,389.15 × 297,516.33
  4. Step 4: Simplify right side
    450,477.84x = 184,873,417,922.24
  5. Step 5: Solve for x
    x = 184,873,417,922.24/450,477.84
  6. Step 6: Final answer
    x = 410,394.03

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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.