Home / 1,251,352.64-1,726,414.08-821,865.60

Finding the Fourth Proportional to 1,251,352.64, 1,726,414.08 and 821,865.60

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Solution

The fourth proportional to 1,251,352.64, 1,726,414.08 and 821,865.60 is: 1,133,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,352.64 : 1,726,414.08 = 821,865.60 : x
  2. Step 2: Convert to fraction form
    1,251,352.64/1,726,414.08 = 821,865.60/x
  3. Step 3: Cross multiply
    1,251,352.64x = 1,726,414.08 × 821,865.60
  4. Step 4: Simplify right side
    1,251,352.64x = 1,418,880,343,707.65
  5. Step 5: Solve for x
    x = 1,418,880,343,707.65/1,251,352.64
  6. Step 6: Final answer
    x = 1,133,877.29

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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.