Home / 897,021.92-1,237,874.46-489,126.98

Finding the Fourth Proportional to 897,021.92, 1,237,874.46 and 489,126.98

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Solution

The fourth proportional to 897,021.92, 1,237,874.46 and 489,126.98 is: 674,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,021.92 : 1,237,874.46 = 489,126.98 : x
  2. Step 2: Convert to fraction form
    897,021.92/1,237,874.46 = 489,126.98/x
  3. Step 3: Cross multiply
    897,021.92x = 1,237,874.46 × 489,126.98
  4. Step 4: Simplify right side
    897,021.92x = 605,477,796,238.93
  5. Step 5: Solve for x
    x = 605,477,796,238.93/897,021.92
  6. Step 6: Final answer
    x = 674,986.62

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Double scale
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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.