Home / 698,804.20-1,047,687.90-299,117.80

Finding the Fourth Proportional to 698,804.20, 1,047,687.90 and 299,117.80

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Solution

The fourth proportional to 698,804.20, 1,047,687.90 and 299,117.80 is: 448,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,804.20 : 1,047,687.90 = 299,117.80 : x
  2. Step 2: Convert to fraction form
    698,804.20/1,047,687.90 = 299,117.80/x
  3. Step 3: Cross multiply
    698,804.20x = 1,047,687.90 × 299,117.80
  4. Step 4: Simplify right side
    698,804.20x = 313,382,099,734.62
  5. Step 5: Solve for x
    x = 313,382,099,734.62/698,804.20
  6. Step 6: Final answer
    x = 448,454.80

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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.