Home / 1,161,980.59-1,603,542.09-645,782.91

Finding the Fourth Proportional to 1,161,980.59, 1,603,542.09 and 645,782.91

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Solution

The fourth proportional to 1,161,980.59, 1,603,542.09 and 645,782.91 is: 891,185.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,980.59 : 1,603,542.09 = 645,782.91 : x
  2. Step 2: Convert to fraction form
    1,161,980.59/1,603,542.09 = 645,782.91/x
  3. Step 3: Cross multiply
    1,161,980.59x = 1,603,542.09 × 645,782.91
  4. Step 4: Simplify right side
    1,161,980.59x = 1,035,540,077,187.68
  5. Step 5: Solve for x
    x = 1,035,540,077,187.68/1,161,980.59
  6. Step 6: Final answer
    x = 891,185.35

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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.