Home / 1,258,015.36-1,736,043.92-714,146.40

Finding the Fourth Proportional to 1,258,015.36, 1,736,043.92 and 714,146.40

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Solution

The fourth proportional to 1,258,015.36, 1,736,043.92 and 714,146.40 is: 985,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,015.36 : 1,736,043.92 = 714,146.40 : x
  2. Step 2: Convert to fraction form
    1,258,015.36/1,736,043.92 = 714,146.40/x
  3. Step 3: Cross multiply
    1,258,015.36x = 1,736,043.92 × 714,146.40
  4. Step 4: Simplify right side
    1,258,015.36x = 1,239,789,515,709.89
  5. Step 5: Solve for x
    x = 1,239,789,515,709.89/1,258,015.36
  6. Step 6: Final answer
    x = 985,512.22

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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.