Home / 1,486,484.40-2,052,199.80-978,663

Finding the Fourth Proportional to 1,486,484.40, 2,052,199.80 and 978,663

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Solution

The fourth proportional to 1,486,484.40, 2,052,199.80 and 978,663 is: 1,351,115.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,486,484.40 : 2,052,199.80 = 978,663 : x
  2. Step 2: Convert to fraction form
    1,486,484.40/2,052,199.80 = 978,663/x
  3. Step 3: Cross multiply
    1,486,484.40x = 2,052,199.80 × 978,663
  4. Step 4: Simplify right side
    1,486,484.40x = 2,008,412,012,867.40
  5. Step 5: Solve for x
    x = 2,008,412,012,867.40/1,486,484.40
  6. Step 6: Final answer
    x = 1,351,115.43

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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.