Home / 1,078,928.82-1,488,970.35-620,192.34

Finding the Fourth Proportional to 1,078,928.82, 1,488,970.35 and 620,192.34

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Solution

The fourth proportional to 1,078,928.82, 1,488,970.35 and 620,192.34 is: 855,893.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,928.82 : 1,488,970.35 = 620,192.34 : x
  2. Step 2: Convert to fraction form
    1,078,928.82/1,488,970.35 = 620,192.34/x
  3. Step 3: Cross multiply
    1,078,928.82x = 1,488,970.35 × 620,192.34
  4. Step 4: Simplify right side
    1,078,928.82x = 923,448,005,557.12
  5. Step 5: Solve for x
    x = 923,448,005,557.12/1,078,928.82
  6. Step 6: Final answer
    x = 855,893.35

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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.