Home / 822,884.46-1,135,808.81-478,786.85

Finding the Fourth Proportional to 822,884.46, 1,135,808.81 and 478,786.85

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Solution

The fourth proportional to 822,884.46, 1,135,808.81 and 478,786.85 is: 660,858.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,884.46 : 1,135,808.81 = 478,786.85 : x
  2. Step 2: Convert to fraction form
    822,884.46/1,135,808.81 = 478,786.85/x
  3. Step 3: Cross multiply
    822,884.46x = 1,135,808.81 × 478,786.85
  4. Step 4: Simplify right side
    822,884.46x = 543,810,314,269.17
  5. Step 5: Solve for x
    x = 543,810,314,269.17/822,884.46
  6. Step 6: Final answer
    x = 660,858.65

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1.5x scale

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.