Home / 1,561,440.32-2,154,791.56-873,137.16

Finding the Fourth Proportional to 1,561,440.32, 2,154,791.56 and 873,137.16

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Solution

The fourth proportional to 1,561,440.32, 2,154,791.56 and 873,137.16 is: 1,204,931.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,440.32 : 2,154,791.56 = 873,137.16 : x
  2. Step 2: Convert to fraction form
    1,561,440.32/2,154,791.56 = 873,137.16/x
  3. Step 3: Cross multiply
    1,561,440.32x = 2,154,791.56 × 873,137.16
  4. Step 4: Simplify right side
    1,561,440.32x = 1,881,428,583,090.37
  5. Step 5: Solve for x
    x = 1,881,428,583,090.37/1,561,440.32
  6. Step 6: Final answer
    x = 1,204,931.47

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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.