Home / 1,276,990.07-1,915,429.70-317,425.37

Finding the Fourth Proportional to 1,276,990.07, 1,915,429.70 and 317,425.37

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Solution

The fourth proportional to 1,276,990.07, 1,915,429.70 and 317,425.37 is: 476,124.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,990.07 : 1,915,429.70 = 317,425.37 : x
  2. Step 2: Convert to fraction form
    1,276,990.07/1,915,429.70 = 317,425.37/x
  3. Step 3: Cross multiply
    1,276,990.07x = 1,915,429.70 × 317,425.37
  4. Step 4: Simplify right side
    1,276,990.07x = 608,005,970,067.21
  5. Step 5: Solve for x
    x = 608,005,970,067.21/1,276,990.07
  6. Step 6: Final answer
    x = 476,124.28

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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.