Home / 1,412,645.36-2,118,921.24-613,927.76

Finding the Fourth Proportional to 1,412,645.36, 2,118,921.24 and 613,927.76

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Solution

The fourth proportional to 1,412,645.36, 2,118,921.24 and 613,927.76 is: 920,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,645.36 : 2,118,921.24 = 613,927.76 : x
  2. Step 2: Convert to fraction form
    1,412,645.36/2,118,921.24 = 613,927.76/x
  3. Step 3: Cross multiply
    1,412,645.36x = 2,118,921.24 × 613,927.76
  4. Step 4: Simplify right side
    1,412,645.36x = 1,300,864,570,489.62
  5. Step 5: Solve for x
    x = 1,300,864,570,489.62/1,412,645.36
  6. Step 6: Final answer
    x = 920,871.30

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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.