Home / 1,013,593.70-1,520,390.55-978,164.30

Finding the Fourth Proportional to 1,013,593.70, 1,520,390.55 and 978,164.30

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Solution

The fourth proportional to 1,013,593.70, 1,520,390.55 and 978,164.30 is: 1,467,246.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,013,593.70 : 1,520,390.55 = 978,164.30 : x
  2. Step 2: Convert to fraction form
    1,013,593.70/1,520,390.55 = 978,164.30/x
  3. Step 3: Cross multiply
    1,013,593.70x = 1,520,390.55 × 978,164.30
  4. Step 4: Simplify right side
    1,013,593.70x = 1,487,191,758,067.37
  5. Step 5: Solve for x
    x = 1,487,191,758,067.37/1,013,593.70
  6. Step 6: Final answer
    x = 1,467,246.45

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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.