Home / 679,511.40-1,019,223.36-206,200.86

Finding the Fourth Proportional to 679,511.40, 1,019,223.36 and 206,200.86

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Solution

The fourth proportional to 679,511.40, 1,019,223.36 and 206,200.86 is: 309,288.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,511.40 : 1,019,223.36 = 206,200.86 : x
  2. Step 2: Convert to fraction form
    679,511.40/1,019,223.36 = 206,200.86/x
  3. Step 3: Cross multiply
    679,511.40x = 1,019,223.36 × 206,200.86
  4. Step 4: Simplify right side
    679,511.40x = 210,164,733,364.09
  5. Step 5: Solve for x
    x = 210,164,733,364.09/679,511.40
  6. Step 6: Final answer
    x = 309,288.02

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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.