Home / 1,216,931.13-1,821,659.96-765,538.49

Finding the Fourth Proportional to 1,216,931.13, 1,821,659.96 and 765,538.49

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Solution

The fourth proportional to 1,216,931.13, 1,821,659.96 and 765,538.49 is: 1,145,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,931.13 : 1,821,659.96 = 765,538.49 : x
  2. Step 2: Convert to fraction form
    1,216,931.13/1,821,659.96 = 765,538.49/x
  3. Step 3: Cross multiply
    1,216,931.13x = 1,821,659.96 × 765,538.49
  4. Step 4: Simplify right side
    1,216,931.13x = 1,394,550,806,690.02
  5. Step 5: Solve for x
    x = 1,394,550,806,690.02/1,216,931.13
  6. Step 6: Final answer
    x = 1,145,957.05

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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.