Home / 1,421,523.36-1,961,512.74-912,914.64

Finding the Fourth Proportional to 1,421,523.36, 1,961,512.74 and 912,914.64

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Solution

The fourth proportional to 1,421,523.36, 1,961,512.74 and 912,914.64 is: 1,259,700.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,523.36 : 1,961,512.74 = 912,914.64 : x
  2. Step 2: Convert to fraction form
    1,421,523.36/1,961,512.74 = 912,914.64/x
  3. Step 3: Cross multiply
    1,421,523.36x = 1,961,512.74 × 912,914.64
  4. Step 4: Simplify right side
    1,421,523.36x = 1,790,693,696,892.51
  5. Step 5: Solve for x
    x = 1,790,693,696,892.51/1,421,523.36
  6. Step 6: Final answer
    x = 1,259,700.51

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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.