Home / 989,258.40-1,483,947.72-279,339.96

Finding the Fourth Proportional to 989,258.40, 1,483,947.72 and 279,339.96

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Solution

The fourth proportional to 989,258.40, 1,483,947.72 and 279,339.96 is: 419,026.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,258.40 : 1,483,947.72 = 279,339.96 : x
  2. Step 2: Convert to fraction form
    989,258.40/1,483,947.72 = 279,339.96/x
  3. Step 3: Cross multiply
    989,258.40x = 1,483,947.72 × 279,339.96
  4. Step 4: Simplify right side
    989,258.40x = 414,525,896,746.89
  5. Step 5: Solve for x
    x = 414,525,896,746.89/989,258.40
  6. Step 6: Final answer
    x = 419,026.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.