Home / 705,775.78-1,058,068.48-306,115.50

Finding the Fourth Proportional to 705,775.78, 1,058,068.48 and 306,115.50

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Solution

The fourth proportional to 705,775.78, 1,058,068.48 and 306,115.50 is: 458,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,775.78 : 1,058,068.48 = 306,115.50 : x
  2. Step 2: Convert to fraction form
    705,775.78/1,058,068.48 = 306,115.50/x
  3. Step 3: Cross multiply
    705,775.78x = 1,058,068.48 × 306,115.50
  4. Step 4: Simplify right side
    705,775.78x = 323,891,161,789.44
  5. Step 5: Solve for x
    x = 323,891,161,789.44/705,775.78
  6. Step 6: Final answer
    x = 458,915.10

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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.