Home / 769,515.21-1,061,928.77-429,983.73

Finding the Fourth Proportional to 769,515.21, 1,061,928.77 and 429,983.73

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Solution

The fourth proportional to 769,515.21, 1,061,928.77 and 429,983.73 is: 593,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,515.21 : 1,061,928.77 = 429,983.73 : x
  2. Step 2: Convert to fraction form
    769,515.21/1,061,928.77 = 429,983.73/x
  3. Step 3: Cross multiply
    769,515.21x = 1,061,928.77 × 429,983.73
  4. Step 4: Simplify right side
    769,515.21x = 456,612,091,368.99
  5. Step 5: Solve for x
    x = 456,612,091,368.99/769,515.21
  6. Step 6: Final answer
    x = 593,376.30

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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.