Home / 761,804.78-1,143,081.61-306,377.82

Finding the Fourth Proportional to 761,804.78, 1,143,081.61 and 306,377.82

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Solution

The fourth proportional to 761,804.78, 1,143,081.61 and 306,377.82 is: 459,717.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,804.78 : 1,143,081.61 = 306,377.82 : x
  2. Step 2: Convert to fraction form
    761,804.78/1,143,081.61 = 306,377.82/x
  3. Step 3: Cross multiply
    761,804.78x = 1,143,081.61 × 306,377.82
  4. Step 4: Simplify right side
    761,804.78x = 350,214,850,987.95
  5. Step 5: Solve for x
    x = 350,214,850,987.95/761,804.78
  6. Step 6: Final answer
    x = 459,717.32

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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.