Home / 681,496.83-1,020,935.07-381,066.21

Finding the Fourth Proportional to 681,496.83, 1,020,935.07 and 381,066.21

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Solution

The fourth proportional to 681,496.83, 1,020,935.07 and 381,066.21 is: 570,866.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,496.83 : 1,020,935.07 = 381,066.21 : x
  2. Step 2: Convert to fraction form
    681,496.83/1,020,935.07 = 381,066.21/x
  3. Step 3: Cross multiply
    681,496.83x = 1,020,935.07 × 381,066.21
  4. Step 4: Simplify right side
    681,496.83x = 389,043,857,780.99
  5. Step 5: Solve for x
    x = 389,043,857,780.99/681,496.83
  6. Step 6: Final answer
    x = 570,866.72

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1.5x scale

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.