Home / 1,284,961.74-1,926,086.25-431,223.90

Finding the Fourth Proportional to 1,284,961.74, 1,926,086.25 and 431,223.90

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Solution

The fourth proportional to 1,284,961.74, 1,926,086.25 and 431,223.90 is: 646,380.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,961.74 : 1,926,086.25 = 431,223.90 : x
  2. Step 2: Convert to fraction form
    1,284,961.74/1,926,086.25 = 431,223.90/x
  3. Step 3: Cross multiply
    1,284,961.74x = 1,926,086.25 × 431,223.90
  4. Step 4: Simplify right side
    1,284,961.74x = 830,574,424,461.38
  5. Step 5: Solve for x
    x = 830,574,424,461.38/1,284,961.74
  6. Step 6: Final answer
    x = 646,380.67

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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.