Home / 1,369,125.20-2,052,305.40-621,707.60

Finding the Fourth Proportional to 1,369,125.20, 2,052,305.40 and 621,707.60

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Solution

The fourth proportional to 1,369,125.20, 2,052,305.40 and 621,707.60 is: 931,933.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,125.20 : 2,052,305.40 = 621,707.60 : x
  2. Step 2: Convert to fraction form
    1,369,125.20/2,052,305.40 = 621,707.60/x
  3. Step 3: Cross multiply
    1,369,125.20x = 2,052,305.40 × 621,707.60
  4. Step 4: Simplify right side
    1,369,125.20x = 1,275,933,864,701.04
  5. Step 5: Solve for x
    x = 1,275,933,864,701.04/1,369,125.20
  6. Step 6: Final answer
    x = 931,933.66

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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.