Home / 905,260.93-1,358,038.37-306,258.55

Finding the Fourth Proportional to 905,260.93, 1,358,038.37 and 306,258.55

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Solution

The fourth proportional to 905,260.93, 1,358,038.37 and 306,258.55 is: 459,437.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,260.93 : 1,358,038.37 = 306,258.55 : x
  2. Step 2: Convert to fraction form
    905,260.93/1,358,038.37 = 306,258.55/x
  3. Step 3: Cross multiply
    905,260.93x = 1,358,038.37 × 306,258.55
  4. Step 4: Simplify right side
    905,260.93x = 415,910,862,040.56
  5. Step 5: Solve for x
    x = 415,910,862,040.56/905,260.93
  6. Step 6: Final answer
    x = 459,437.55

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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.