Home / 989,611.03-1,365,826.53-679,258.56

Finding the Fourth Proportional to 989,611.03, 1,365,826.53 and 679,258.56

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Solution

The fourth proportional to 989,611.03, 1,365,826.53 and 679,258.56 is: 937,488.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,611.03 : 1,365,826.53 = 679,258.56 : x
  2. Step 2: Convert to fraction form
    989,611.03/1,365,826.53 = 679,258.56/x
  3. Step 3: Cross multiply
    989,611.03x = 1,365,826.53 × 679,258.56
  4. Step 4: Simplify right side
    989,611.03x = 927,749,361,977.60
  5. Step 5: Solve for x
    x = 927,749,361,977.60/989,611.03
  6. Step 6: Final answer
    x = 937,488.91

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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.