Home / 1,235,830.32-1,705,304.88-691,890.48

Finding the Fourth Proportional to 1,235,830.32, 1,705,304.88 and 691,890.48

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Solution

The fourth proportional to 1,235,830.32, 1,705,304.88 and 691,890.48 is: 954,729.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,830.32 : 1,705,304.88 = 691,890.48 : x
  2. Step 2: Convert to fraction form
    1,235,830.32/1,705,304.88 = 691,890.48/x
  3. Step 3: Cross multiply
    1,235,830.32x = 1,705,304.88 × 691,890.48
  4. Step 4: Simplify right side
    1,235,830.32x = 1,179,884,211,969.54
  5. Step 5: Solve for x
    x = 1,179,884,211,969.54/1,235,830.32
  6. Step 6: Final answer
    x = 954,729.94

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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.