Home / 489,584.51-734,221.23-157,082.75

Finding the Fourth Proportional to 489,584.51, 734,221.23 and 157,082.75

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Solution

The fourth proportional to 489,584.51, 734,221.23 and 157,082.75 is: 235,574.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,584.51 : 734,221.23 = 157,082.75 : x
  2. Step 2: Convert to fraction form
    489,584.51/734,221.23 = 157,082.75/x
  3. Step 3: Cross multiply
    489,584.51x = 734,221.23 × 157,082.75
  4. Step 4: Simplify right side
    489,584.51x = 115,333,489,916.78
  5. Step 5: Solve for x
    x = 115,333,489,916.78/489,584.51
  6. Step 6: Final answer
    x = 235,574.22

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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.