Home / 821,884.74-1,134,205.12-459,314.66

Finding the Fourth Proportional to 821,884.74, 1,134,205.12 and 459,314.66

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Solution

The fourth proportional to 821,884.74, 1,134,205.12 and 459,314.66 is: 633,856.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,884.74 : 1,134,205.12 = 459,314.66 : x
  2. Step 2: Convert to fraction form
    821,884.74/1,134,205.12 = 459,314.66/x
  3. Step 3: Cross multiply
    821,884.74x = 1,134,205.12 × 459,314.66
  4. Step 4: Simplify right side
    821,884.74x = 520,957,039,063.06
  5. Step 5: Solve for x
    x = 520,957,039,063.06/821,884.74
  6. Step 6: Final answer
    x = 633,856.57

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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.