Home / 489,011.86-674,835.90-274,151.98

Finding the Fourth Proportional to 489,011.86, 674,835.90 and 274,151.98

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Solution

The fourth proportional to 489,011.86, 674,835.90 and 274,151.98 is: 378,329.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,011.86 : 674,835.90 = 274,151.98 : x
  2. Step 2: Convert to fraction form
    489,011.86/674,835.90 = 274,151.98/x
  3. Step 3: Cross multiply
    489,011.86x = 674,835.90 × 274,151.98
  4. Step 4: Simplify right side
    489,011.86x = 185,007,598,160.08
  5. Step 5: Solve for x
    x = 185,007,598,160.08/489,011.86
  6. Step 6: Final answer
    x = 378,329.47

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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.