Home / 842,431.40-1,162,394.06-479,847.32

Finding the Fourth Proportional to 842,431.40, 1,162,394.06 and 479,847.32

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Solution

The fourth proportional to 842,431.40, 1,162,394.06 and 479,847.32 is: 662,097.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,431.40 : 1,162,394.06 = 479,847.32 : x
  2. Step 2: Convert to fraction form
    842,431.40/1,162,394.06 = 479,847.32/x
  3. Step 3: Cross multiply
    842,431.40x = 1,162,394.06 × 479,847.32
  4. Step 4: Simplify right side
    842,431.40x = 557,771,674,474.92
  5. Step 5: Solve for x
    x = 557,771,674,474.92/842,431.40
  6. Step 6: Final answer
    x = 662,097.44

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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.