Home / 489,866.13-734,845.56-190,369.80

Finding the Fourth Proportional to 489,866.13, 734,845.56 and 190,369.80

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Solution

The fourth proportional to 489,866.13, 734,845.56 and 190,369.80 is: 285,572.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,866.13 : 734,845.56 = 190,369.80 : x
  2. Step 2: Convert to fraction form
    489,866.13/734,845.56 = 190,369.80/x
  3. Step 3: Cross multiply
    489,866.13x = 734,845.56 × 190,369.80
  4. Step 4: Simplify right side
    489,866.13x = 139,892,403,001.98
  5. Step 5: Solve for x
    x = 139,892,403,001.98/489,866.13
  6. Step 6: Final answer
    x = 285,572.72

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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.