Home / 1,132,561.38-1,562,582.84-642,450.12

Finding the Fourth Proportional to 1,132,561.38, 1,562,582.84 and 642,450.12

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Solution

The fourth proportional to 1,132,561.38, 1,562,582.84 and 642,450.12 is: 886,381.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,561.38 : 1,562,582.84 = 642,450.12 : x
  2. Step 2: Convert to fraction form
    1,132,561.38/1,562,582.84 = 642,450.12/x
  3. Step 3: Cross multiply
    1,132,561.38x = 1,562,582.84 × 642,450.12
  4. Step 4: Simplify right side
    1,132,561.38x = 1,003,881,533,067.94
  5. Step 5: Solve for x
    x = 1,003,881,533,067.94/1,132,561.38
  6. Step 6: Final answer
    x = 886,381.57

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Why These Related Problems?

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