Home / 1,221,635.34-1,685,799.90-677,765.34

Finding the Fourth Proportional to 1,221,635.34, 1,685,799.90 and 677,765.34

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Solution

The fourth proportional to 1,221,635.34, 1,685,799.90 and 677,765.34 is: 935,284.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,635.34 : 1,685,799.90 = 677,765.34 : x
  2. Step 2: Convert to fraction form
    1,221,635.34/1,685,799.90 = 677,765.34/x
  3. Step 3: Cross multiply
    1,221,635.34x = 1,685,799.90 × 677,765.34
  4. Step 4: Simplify right side
    1,221,635.34x = 1,142,576,742,395.47
  5. Step 5: Solve for x
    x = 1,142,576,742,395.47/1,221,635.34
  6. Step 6: Final answer
    x = 935,284.62

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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.