Home / 705,806.78-1,058,114.90-306,146.64

Finding the Fourth Proportional to 705,806.78, 1,058,114.90 and 306,146.64

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Solution

The fourth proportional to 705,806.78, 1,058,114.90 and 306,146.64 is: 458,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,806.78 : 1,058,114.90 = 306,146.64 : x
  2. Step 2: Convert to fraction form
    705,806.78/1,058,114.90 = 306,146.64/x
  3. Step 3: Cross multiply
    705,806.78x = 1,058,114.90 × 306,146.64
  4. Step 4: Simplify right side
    705,806.78x = 323,938,319,838.20
  5. Step 5: Solve for x
    x = 323,938,319,838.20/705,806.78
  6. Step 6: Final answer
    x = 458,961.76

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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.