Home / 1,456,258.24-2,009,645.64-811,719.28

Finding the Fourth Proportional to 1,456,258.24, 2,009,645.64 and 811,719.28

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Solution

The fourth proportional to 1,456,258.24, 2,009,645.64 and 811,719.28 is: 1,120,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456,258.24 : 2,009,645.64 = 811,719.28 : x
  2. Step 2: Convert to fraction form
    1,456,258.24/2,009,645.64 = 811,719.28/x
  3. Step 3: Cross multiply
    1,456,258.24x = 2,009,645.64 × 811,719.28
  4. Step 4: Simplify right side
    1,456,258.24x = 1,631,268,111,955.94
  5. Step 5: Solve for x
    x = 1,631,268,111,955.94/1,456,258.24
  6. Step 6: Final answer
    x = 1,120,177.77

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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.