Home / 489,579.51-734,213.73-157,077.75

Finding the Fourth Proportional to 489,579.51, 734,213.73 and 157,077.75

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Solution

The fourth proportional to 489,579.51, 734,213.73 and 157,077.75 is: 235,566.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,579.51 : 734,213.73 = 157,077.75 : x
  2. Step 2: Convert to fraction form
    489,579.51/734,213.73 = 157,077.75/x
  3. Step 3: Cross multiply
    489,579.51x = 734,213.73 × 157,077.75
  4. Step 4: Simplify right side
    489,579.51x = 115,328,640,727.51
  5. Step 5: Solve for x
    x = 115,328,640,727.51/489,579.51
  6. Step 6: Final answer
    x = 235,566.72

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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.