Home / 1,078,218.40-1,615,189.20-945,248.80

Finding the Fourth Proportional to 1,078,218.40, 1,615,189.20 and 945,248.80

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Solution

The fourth proportional to 1,078,218.40, 1,615,189.20 and 945,248.80 is: 1,415,998.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,218.40 : 1,615,189.20 = 945,248.80 : x
  2. Step 2: Convert to fraction form
    1,078,218.40/1,615,189.20 = 945,248.80/x
  3. Step 3: Cross multiply
    1,078,218.40x = 1,615,189.20 × 945,248.80
  4. Step 4: Simplify right side
    1,078,218.40x = 1,526,755,653,072.96
  5. Step 5: Solve for x
    x = 1,526,755,653,072.96/1,078,218.40
  6. Step 6: Final answer
    x = 1,415,998.51

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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.