Home / 679,041.90-1,018,668.51-205,614.54

Finding the Fourth Proportional to 679,041.90, 1,018,668.51 and 205,614.54

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Solution

The fourth proportional to 679,041.90, 1,018,668.51 and 205,614.54 is: 308,453.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,041.90 : 1,018,668.51 = 205,614.54 : x
  2. Step 2: Convert to fraction form
    679,041.90/1,018,668.51 = 205,614.54/x
  3. Step 3: Cross multiply
    679,041.90x = 1,018,668.51 × 205,614.54
  4. Step 4: Simplify right side
    679,041.90x = 209,453,057,096.14
  5. Step 5: Solve for x
    x = 209,453,057,096.14/679,041.90
  6. Step 6: Final answer
    x = 308,453.80

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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.