Home / 1,162,697.07-1,604,540.61-639,428.36

Finding the Fourth Proportional to 1,162,697.07, 1,604,540.61 and 639,428.36

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Solution

The fourth proportional to 1,162,697.07, 1,604,540.61 and 639,428.36 is: 882,421.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162,697.07 : 1,604,540.61 = 639,428.36 : x
  2. Step 2: Convert to fraction form
    1,162,697.07/1,604,540.61 = 639,428.36/x
  3. Step 3: Cross multiply
    1,162,697.07x = 1,604,540.61 × 639,428.36
  4. Step 4: Simplify right side
    1,162,697.07x = 1,025,988,759,585.85
  5. Step 5: Solve for x
    x = 1,025,988,759,585.85/1,162,697.07
  6. Step 6: Final answer
    x = 882,421.39

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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.