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Finding the Fourth Proportional to 429,771.52, 643,607.25 and 370,984.96

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Solution

The fourth proportional to 429,771.52, 643,607.25 and 370,984.96 is: 555,571.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,771.52 : 643,607.25 = 370,984.96 : x
  2. Step 2: Convert to fraction form
    429,771.52/643,607.25 = 370,984.96/x
  3. Step 3: Cross multiply
    429,771.52x = 643,607.25 × 370,984.96
  4. Step 4: Simplify right side
    429,771.52x = 238,768,609,896.96
  5. Step 5: Solve for x
    x = 238,768,609,896.96/429,771.52
  6. Step 6: Final answer
    x = 555,571.04

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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.