Home / 776,491.01-1,071,392.87-489,844.97

Finding the Fourth Proportional to 776,491.01, 1,071,392.87 and 489,844.97

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Solution

The fourth proportional to 776,491.01, 1,071,392.87 and 489,844.97 is: 675,882.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,491.01 : 1,071,392.87 = 489,844.97 : x
  2. Step 2: Convert to fraction form
    776,491.01/1,071,392.87 = 489,844.97/x
  3. Step 3: Cross multiply
    776,491.01x = 1,071,392.87 × 489,844.97
  4. Step 4: Simplify right side
    776,491.01x = 524,816,408,148.74
  5. Step 5: Solve for x
    x = 524,816,408,148.74/776,491.01
  6. Step 6: Final answer
    x = 675,882.14

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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.