Home / 809,467.72-1,117,443.43-469,870.60

Finding the Fourth Proportional to 809,467.72, 1,117,443.43 and 469,870.60

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Solution

The fourth proportional to 809,467.72, 1,117,443.43 and 469,870.60 is: 648,640.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,467.72 : 1,117,443.43 = 469,870.60 : x
  2. Step 2: Convert to fraction form
    809,467.72/1,117,443.43 = 469,870.60/x
  3. Step 3: Cross multiply
    809,467.72x = 1,117,443.43 × 469,870.60
  4. Step 4: Simplify right side
    809,467.72x = 525,053,809,332.94
  5. Step 5: Solve for x
    x = 525,053,809,332.94/809,467.72
  6. Step 6: Final answer
    x = 648,640.83

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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.