Home / 1,251,364.64-1,726,430.64-821,877.60

Finding the Fourth Proportional to 1,251,364.64, 1,726,430.64 and 821,877.60

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Solution

The fourth proportional to 1,251,364.64, 1,726,430.64 and 821,877.60 is: 1,133,893.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,364.64 : 1,726,430.64 = 821,877.60 : x
  2. Step 2: Convert to fraction form
    1,251,364.64/1,726,430.64 = 821,877.60/x
  3. Step 3: Cross multiply
    1,251,364.64x = 1,726,430.64 × 821,877.60
  4. Step 4: Simplify right side
    1,251,364.64x = 1,418,914,670,969.66
  5. Step 5: Solve for x
    x = 1,418,914,670,969.66/1,251,364.64
  6. Step 6: Final answer
    x = 1,133,893.85

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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.