Home / 489,927.60-734,113.80-323,521.20

Finding the Fourth Proportional to 489,927.60, 734,113.80 and 323,521.20

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Solution

The fourth proportional to 489,927.60, 734,113.80 and 323,521.20 is: 484,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,927.60 : 734,113.80 = 323,521.20 : x
  2. Step 2: Convert to fraction form
    489,927.60/734,113.80 = 323,521.20/x
  3. Step 3: Cross multiply
    489,927.60x = 734,113.80 × 323,521.20
  4. Step 4: Simplify right side
    489,927.60x = 237,501,377,512.56
  5. Step 5: Solve for x
    x = 237,501,377,512.56/489,927.60
  6. Step 6: Final answer
    x = 484,768.32

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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.