Home / 1,623,017.58-2,239,060.21-978,071.28

Finding the Fourth Proportional to 1,623,017.58, 2,239,060.21 and 978,071.28

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Solution

The fourth proportional to 1,623,017.58, 2,239,060.21 and 978,071.28 is: 1,349,314.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,623,017.58 : 2,239,060.21 = 978,071.28 : x
  2. Step 2: Convert to fraction form
    1,623,017.58/2,239,060.21 = 978,071.28/x
  3. Step 3: Cross multiply
    1,623,017.58x = 2,239,060.21 × 978,071.28
  4. Step 4: Simplify right side
    1,623,017.58x = 2,189,960,485,591.77
  5. Step 5: Solve for x
    x = 2,189,960,485,591.77/1,623,017.58
  6. Step 6: Final answer
    x = 1,349,314.09

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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.