Home / 1,939,473.20-2,907,857.28-859,398.32

Finding the Fourth Proportional to 1,939,473.20, 2,907,857.28 and 859,398.32

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Solution

The fourth proportional to 1,939,473.20, 2,907,857.28 and 859,398.32 is: 1,288,498.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,473.20 : 2,907,857.28 = 859,398.32 : x
  2. Step 2: Convert to fraction form
    1,939,473.20/2,907,857.28 = 859,398.32/x
  3. Step 3: Cross multiply
    1,939,473.20x = 2,907,857.28 × 859,398.32
  4. Step 4: Simplify right side
    1,939,473.20x = 2,499,007,661,231.77
  5. Step 5: Solve for x
    x = 2,499,007,661,231.77/1,939,473.20
  6. Step 6: Final answer
    x = 1,288,498.17

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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.