Home / 769,509.21-1,061,920.44-429,977.73

Finding the Fourth Proportional to 769,509.21, 1,061,920.44 and 429,977.73

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Solution

The fourth proportional to 769,509.21, 1,061,920.44 and 429,977.73 is: 593,368.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,509.21 : 1,061,920.44 = 429,977.73 : x
  2. Step 2: Convert to fraction form
    769,509.21/1,061,920.44 = 429,977.73/x
  3. Step 3: Cross multiply
    769,509.21x = 1,061,920.44 × 429,977.73
  4. Step 4: Simplify right side
    769,509.21x = 456,602,140,231.80
  5. Step 5: Solve for x
    x = 456,602,140,231.80/769,509.21
  6. Step 6: Final answer
    x = 593,368.00

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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.