Home / 809,864.07-1,117,620.86-447,297.18

Finding the Fourth Proportional to 809,864.07, 1,117,620.86 and 447,297.18

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Solution

The fourth proportional to 809,864.07, 1,117,620.86 and 447,297.18 is: 617,274.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,864.07 : 1,117,620.86 = 447,297.18 : x
  2. Step 2: Convert to fraction form
    809,864.07/1,117,620.86 = 447,297.18/x
  3. Step 3: Cross multiply
    809,864.07x = 1,117,620.86 × 447,297.18
  4. Step 4: Simplify right side
    809,864.07x = 499,908,656,750.69
  5. Step 5: Solve for x
    x = 499,908,656,750.69/809,864.07
  6. Step 6: Final answer
    x = 617,274.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.