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Finding the Fourth Proportional to 450,493.84, 621,504.66 and 289,326.52

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Solution

The fourth proportional to 450,493.84, 621,504.66 and 289,326.52 is: 399,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,493.84 : 621,504.66 = 289,326.52 : x
  2. Step 2: Convert to fraction form
    450,493.84/621,504.66 = 289,326.52/x
  3. Step 3: Cross multiply
    450,493.84x = 621,504.66 × 289,326.52
  4. Step 4: Simplify right side
    450,493.84x = 179,817,780,441.58
  5. Step 5: Solve for x
    x = 179,817,780,441.58/450,493.84
  6. Step 6: Final answer
    x = 399,157.02

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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.