Home / 1,139,206.05-1,572,104.75-649,161.54

Finding the Fourth Proportional to 1,139,206.05, 1,572,104.75 and 649,161.54

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Solution

The fourth proportional to 1,139,206.05, 1,572,104.75 and 649,161.54 is: 895,843.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,206.05 : 1,572,104.75 = 649,161.54 : x
  2. Step 2: Convert to fraction form
    1,139,206.05/1,572,104.75 = 649,161.54/x
  3. Step 3: Cross multiply
    1,139,206.05x = 1,572,104.75 × 649,161.54
  4. Step 4: Simplify right side
    1,139,206.05x = 1,020,549,940,551.32
  5. Step 5: Solve for x
    x = 1,020,549,940,551.32/1,139,206.05
  6. Step 6: Final answer
    x = 895,843.15

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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.