Home / 769,479.77-1,154,217.33-540,834.05

Finding the Fourth Proportional to 769,479.77, 1,154,217.33 and 540,834.05

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Solution

The fourth proportional to 769,479.77, 1,154,217.33 and 540,834.05 is: 811,249.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,479.77 : 1,154,217.33 = 540,834.05 : x
  2. Step 2: Convert to fraction form
    769,479.77/1,154,217.33 = 540,834.05/x
  3. Step 3: Cross multiply
    769,479.77x = 1,154,217.33 × 540,834.05
  4. Step 4: Simplify right side
    769,479.77x = 624,240,036,049.63
  5. Step 5: Solve for x
    x = 624,240,036,049.63/769,479.77
  6. Step 6: Final answer
    x = 811,249.44

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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.