Home / 489,721.10-734,580.48-276,392.30

Finding the Fourth Proportional to 489,721.10, 734,580.48 and 276,392.30

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Solution

The fourth proportional to 489,721.10, 734,580.48 and 276,392.30 is: 414,587.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,721.10 : 734,580.48 = 276,392.30 : x
  2. Step 2: Convert to fraction form
    489,721.10/734,580.48 = 276,392.30/x
  3. Step 3: Cross multiply
    489,721.10x = 734,580.48 × 276,392.30
  4. Step 4: Simplify right side
    489,721.10x = 203,032,388,402.30
  5. Step 5: Solve for x
    x = 203,032,388,402.30/489,721.10
  6. Step 6: Final answer
    x = 414,587.79

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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.