Home / 1,128,671.72-1,557,611.90-619,392.32

Finding the Fourth Proportional to 1,128,671.72, 1,557,611.90 and 619,392.32

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Solution

The fourth proportional to 1,128,671.72, 1,557,611.90 and 619,392.32 is: 854,786.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,671.72 : 1,557,611.90 = 619,392.32 : x
  2. Step 2: Convert to fraction form
    1,128,671.72/1,557,611.90 = 619,392.32/x
  3. Step 3: Cross multiply
    1,128,671.72x = 1,557,611.90 × 619,392.32
  4. Step 4: Simplify right side
    1,128,671.72x = 964,772,848,400.61
  5. Step 5: Solve for x
    x = 964,772,848,400.61/1,128,671.72
  6. Step 6: Final answer
    x = 854,786.06

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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.