Home / 769,390.50-1,061,759.34-429,858.75

Finding the Fourth Proportional to 769,390.50, 1,061,759.34 and 429,858.75

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Solution

The fourth proportional to 769,390.50, 1,061,759.34 and 429,858.75 is: 593,205.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,390.50 : 1,061,759.34 = 429,858.75 : x
  2. Step 2: Convert to fraction form
    769,390.50/1,061,759.34 = 429,858.75/x
  3. Step 3: Cross multiply
    769,390.50x = 1,061,759.34 × 429,858.75
  4. Step 4: Simplify right side
    769,390.50x = 456,406,542,693.23
  5. Step 5: Solve for x
    x = 456,406,542,693.23/769,390.50
  6. Step 6: Final answer
    x = 593,205.33

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1.5x scale

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.