Home / 679,732.49-1,019,532.51-206,421.95

Finding the Fourth Proportional to 679,732.49, 1,019,532.51 and 206,421.95

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Solution

The fourth proportional to 679,732.49, 1,019,532.51 and 206,421.95 is: 309,612.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,732.49 : 1,019,532.51 = 206,421.95 : x
  2. Step 2: Convert to fraction form
    679,732.49/1,019,532.51 = 206,421.95/x
  3. Step 3: Cross multiply
    679,732.49x = 1,019,532.51 × 206,421.95
  4. Step 4: Simplify right side
    679,732.49x = 210,453,883,704.93
  5. Step 5: Solve for x
    x = 210,453,883,704.93/679,732.49
  6. Step 6: Final answer
    x = 309,612.81

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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.