Home / 489,001.82-674,823.57-285,037.34

Finding the Fourth Proportional to 489,001.82, 674,823.57 and 285,037.34

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Solution

The fourth proportional to 489,001.82, 674,823.57 and 285,037.34 is: 393,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,001.82 : 674,823.57 = 285,037.34 : x
  2. Step 2: Convert to fraction form
    489,001.82/674,823.57 = 285,037.34/x
  3. Step 3: Cross multiply
    489,001.82x = 674,823.57 × 285,037.34
  4. Step 4: Simplify right side
    489,001.82x = 192,349,915,362.10
  5. Step 5: Solve for x
    x = 192,349,915,362.10/489,001.82
  6. Step 6: Final answer
    x = 393,352.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.