Home / 1,281,399.12-1,768,174.92-708,359.76

Finding the Fourth Proportional to 1,281,399.12, 1,768,174.92 and 708,359.76

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Solution

The fourth proportional to 1,281,399.12, 1,768,174.92 and 708,359.76 is: 977,450.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,399.12 : 1,768,174.92 = 708,359.76 : x
  2. Step 2: Convert to fraction form
    1,281,399.12/1,768,174.92 = 708,359.76/x
  3. Step 3: Cross multiply
    1,281,399.12x = 1,768,174.92 × 708,359.76
  4. Step 4: Simplify right side
    1,281,399.12x = 1,252,503,961,969.22
  5. Step 5: Solve for x
    x = 1,252,503,961,969.22/1,281,399.12
  6. Step 6: Final answer
    x = 977,450.31

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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.