Home / 1,561,194-2,154,451.32-872,890.38

Finding the Fourth Proportional to 1,561,194, 2,154,451.32 and 872,890.38

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Solution

The fourth proportional to 1,561,194, 2,154,451.32 and 872,890.38 is: 1,204,590.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,194 : 2,154,451.32 = 872,890.38 : x
  2. Step 2: Convert to fraction form
    1,561,194/2,154,451.32 = 872,890.38/x
  3. Step 3: Cross multiply
    1,561,194x = 2,154,451.32 × 872,890.38
  4. Step 4: Simplify right side
    1,561,194x = 1,880,599,831,406.30
  5. Step 5: Solve for x
    x = 1,880,599,831,406.30/1,561,194
  6. Step 6: Final answer
    x = 1,204,590.74

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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.