Home / 1,274,137.80-1,909,878.10-516,502.27

Finding the Fourth Proportional to 1,274,137.80, 1,909,878.10 and 516,502.27

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Solution

The fourth proportional to 1,274,137.80, 1,909,878.10 and 516,502.27 is: 774,214.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,137.80 : 1,909,878.10 = 516,502.27 : x
  2. Step 2: Convert to fraction form
    1,274,137.80/1,909,878.10 = 516,502.27/x
  3. Step 3: Cross multiply
    1,274,137.80x = 1,909,878.10 × 516,502.27
  4. Step 4: Simplify right side
    1,274,137.80x = 986,456,374,073.29
  5. Step 5: Solve for x
    x = 986,456,374,073.29/1,274,137.80
  6. Step 6: Final answer
    x = 774,214.83

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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.