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Finding the Fourth Proportional to 423,375.84, 634,732.32 and 289,852.32

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Solution

The fourth proportional to 423,375.84, 634,732.32 and 289,852.32 is: 434,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,375.84 : 634,732.32 = 289,852.32 : x
  2. Step 2: Convert to fraction form
    423,375.84/634,732.32 = 289,852.32/x
  3. Step 3: Cross multiply
    423,375.84x = 634,732.32 × 289,852.32
  4. Step 4: Simplify right side
    423,375.84x = 183,978,635,530.98
  5. Step 5: Solve for x
    x = 183,978,635,530.98/423,375.84
  6. Step 6: Final answer
    x = 434,551.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.