Home / 489,176.72-733,643.56-276,038.20

Finding the Fourth Proportional to 489,176.72, 733,643.56 and 276,038.20

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Solution

The fourth proportional to 489,176.72, 733,643.56 and 276,038.20 is: 413,988.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,176.72 : 733,643.56 = 276,038.20 : x
  2. Step 2: Convert to fraction form
    489,176.72/733,643.56 = 276,038.20/x
  3. Step 3: Cross multiply
    489,176.72x = 733,643.56 × 276,038.20
  4. Step 4: Simplify right side
    489,176.72x = 202,513,647,743.99
  5. Step 5: Solve for x
    x = 202,513,647,743.99/489,176.72
  6. Step 6: Final answer
    x = 413,988.73

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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.