Home / 626,721.12-939,882.24-205,899.84

Finding the Fourth Proportional to 626,721.12, 939,882.24 and 205,899.84

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Solution

The fourth proportional to 626,721.12, 939,882.24 and 205,899.84 is: 308,784.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,721.12 : 939,882.24 = 205,899.84 : x
  2. Step 2: Convert to fraction form
    626,721.12/939,882.24 = 205,899.84/x
  3. Step 3: Cross multiply
    626,721.12x = 939,882.24 × 205,899.84
  4. Step 4: Simplify right side
    626,721.12x = 193,521,602,834.84
  5. Step 5: Solve for x
    x = 193,521,602,834.84/626,721.12
  6. Step 6: Final answer
    x = 308,784.24

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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.