Home / 1,229,172.60-1,695,655.26-821,374.59

Finding the Fourth Proportional to 1,229,172.60, 1,695,655.26 and 821,374.59

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Solution

The fourth proportional to 1,229,172.60, 1,695,655.26 and 821,374.59 is: 1,133,094.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,172.60 : 1,695,655.26 = 821,374.59 : x
  2. Step 2: Convert to fraction form
    1,229,172.60/1,695,655.26 = 821,374.59/x
  3. Step 3: Cross multiply
    1,229,172.60x = 1,695,655.26 × 821,374.59
  4. Step 4: Simplify right side
    1,229,172.60x = 1,392,768,143,963.84
  5. Step 5: Solve for x
    x = 1,392,768,143,963.84/1,229,172.60
  6. Step 6: Final answer
    x = 1,133,094.04

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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.