Home / 809,420.25-1,117,009.01-446,844.34

Finding the Fourth Proportional to 809,420.25, 1,117,009.01 and 446,844.34

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Solution

The fourth proportional to 809,420.25, 1,117,009.01 and 446,844.34 is: 616,650.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,420.25 : 1,117,009.01 = 446,844.34 : x
  2. Step 2: Convert to fraction form
    809,420.25/1,117,009.01 = 446,844.34/x
  3. Step 3: Cross multiply
    809,420.25x = 1,117,009.01 × 446,844.34
  4. Step 4: Simplify right side
    809,420.25x = 499,129,153,847.50
  5. Step 5: Solve for x
    x = 499,129,153,847.50/809,420.25
  6. Step 6: Final answer
    x = 616,650.19

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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.