Home / 709,463.63-979,080.46-387,194.33

Finding the Fourth Proportional to 709,463.63, 979,080.46 and 387,194.33

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Solution

The fourth proportional to 709,463.63, 979,080.46 and 387,194.33 is: 534,339.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,463.63 : 979,080.46 = 387,194.33 : x
  2. Step 2: Convert to fraction form
    709,463.63/979,080.46 = 387,194.33/x
  3. Step 3: Cross multiply
    709,463.63x = 979,080.46 × 387,194.33
  4. Step 4: Simplify right side
    709,463.63x = 379,094,396,862.40
  5. Step 5: Solve for x
    x = 379,094,396,862.40/709,463.63
  6. Step 6: Final answer
    x = 534,339.44

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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.