Home / 1,284,635.78-1,926,350.09-745,045.31

Finding the Fourth Proportional to 1,284,635.78, 1,926,350.09 and 745,045.31

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Solution

The fourth proportional to 1,284,635.78, 1,926,350.09 and 745,045.31 is: 1,117,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,635.78 : 1,926,350.09 = 745,045.31 : x
  2. Step 2: Convert to fraction form
    1,284,635.78/1,926,350.09 = 745,045.31/x
  3. Step 3: Cross multiply
    1,284,635.78x = 1,926,350.09 × 745,045.31
  4. Step 4: Simplify right side
    1,284,635.78x = 1,435,218,086,615.60
  5. Step 5: Solve for x
    x = 1,435,218,086,615.60/1,284,635.78
  6. Step 6: Final answer
    x = 1,117,217.90

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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.