Home / 1,139,107.69-1,572,000.11-629,828.29

Finding the Fourth Proportional to 1,139,107.69, 1,572,000.11 and 629,828.29

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Solution

The fourth proportional to 1,139,107.69, 1,572,000.11 and 629,828.29 is: 869,180.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,107.69 : 1,572,000.11 = 629,828.29 : x
  2. Step 2: Convert to fraction form
    1,139,107.69/1,572,000.11 = 629,828.29/x
  3. Step 3: Cross multiply
    1,139,107.69x = 1,572,000.11 × 629,828.29
  4. Step 4: Simplify right side
    1,139,107.69x = 990,090,141,161.11
  5. Step 5: Solve for x
    x = 990,090,141,161.11/1,139,107.69
  6. Step 6: Final answer
    x = 869,180.46

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.