Home / 1,128,987.76-1,558,008.12-619,694.32

Finding the Fourth Proportional to 1,128,987.76, 1,558,008.12 and 619,694.32

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Solution

The fourth proportional to 1,128,987.76, 1,558,008.12 and 619,694.32 is: 855,180.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,987.76 : 1,558,008.12 = 619,694.32 : x
  2. Step 2: Convert to fraction form
    1,128,987.76/1,558,008.12 = 619,694.32/x
  3. Step 3: Cross multiply
    1,128,987.76x = 1,558,008.12 × 619,694.32
  4. Step 4: Simplify right side
    1,128,987.76x = 965,488,782,477.88
  5. Step 5: Solve for x
    x = 965,488,782,477.88/1,128,987.76
  6. Step 6: Final answer
    x = 855,180.91

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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.