Home / 993,914.80-1,490,872.20-678,986.80

Finding the Fourth Proportional to 993,914.80, 1,490,872.20 and 678,986.80

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Solution

The fourth proportional to 993,914.80, 1,490,872.20 and 678,986.80 is: 1,018,480.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,914.80 : 1,490,872.20 = 678,986.80 : x
  2. Step 2: Convert to fraction form
    993,914.80/1,490,872.20 = 678,986.80/x
  3. Step 3: Cross multiply
    993,914.80x = 1,490,872.20 × 678,986.80
  4. Step 4: Simplify right side
    993,914.80x = 1,012,282,544,286.96
  5. Step 5: Solve for x
    x = 1,012,282,544,286.96/993,914.80
  6. Step 6: Final answer
    x = 1,018,480.20

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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.