Home / 809,431.34-1,117,017.12-446,855.45

Finding the Fourth Proportional to 809,431.34, 1,117,017.12 and 446,855.45

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Solution

The fourth proportional to 809,431.34, 1,117,017.12 and 446,855.45 is: 616,661.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,431.34 : 1,117,017.12 = 446,855.45 : x
  2. Step 2: Convert to fraction form
    809,431.34/1,117,017.12 = 446,855.45/x
  3. Step 3: Cross multiply
    809,431.34x = 1,117,017.12 × 446,855.45
  4. Step 4: Simplify right side
    809,431.34x = 499,145,187,815.30
  5. Step 5: Solve for x
    x = 499,145,187,815.30/809,431.34
  6. Step 6: Final answer
    x = 616,661.55

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Double scale
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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.