Home / 769,511.58-1,148,632.32-678,610.65

Finding the Fourth Proportional to 769,511.58, 1,148,632.32 and 678,610.65

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Solution

The fourth proportional to 769,511.58, 1,148,632.32 and 678,610.65 is: 1,012,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,511.58 : 1,148,632.32 = 678,610.65 : x
  2. Step 2: Convert to fraction form
    769,511.58/1,148,632.32 = 678,610.65/x
  3. Step 3: Cross multiply
    769,511.58x = 1,148,632.32 × 678,610.65
  4. Step 4: Simplify right side
    769,511.58x = 779,474,125,286.21
  5. Step 5: Solve for x
    x = 779,474,125,286.21/769,511.58
  6. Step 6: Final answer
    x = 1,012,946.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.