Home / 1,078,181.40-1,615,133.70-945,211.80

Finding the Fourth Proportional to 1,078,181.40, 1,615,133.70 and 945,211.80

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Solution

The fourth proportional to 1,078,181.40, 1,615,133.70 and 945,211.80 is: 1,415,943.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,181.40 : 1,615,133.70 = 945,211.80 : x
  2. Step 2: Convert to fraction form
    1,078,181.40/1,615,133.70 = 945,211.80/x
  3. Step 3: Cross multiply
    1,078,181.40x = 1,615,133.70 × 945,211.80
  4. Step 4: Simplify right side
    1,078,181.40x = 1,526,643,431,817.66
  5. Step 5: Solve for x
    x = 1,526,643,431,817.66/1,078,181.40
  6. Step 6: Final answer
    x = 1,415,943.02

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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.