Home / 1,399,878-1,932,428.78-941,258.40

Finding the Fourth Proportional to 1,399,878, 1,932,428.78 and 941,258.40

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Solution

The fourth proportional to 1,399,878, 1,932,428.78 and 941,258.40 is: 1,299,338.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,878 : 1,932,428.78 = 941,258.40 : x
  2. Step 2: Convert to fraction form
    1,399,878/1,932,428.78 = 941,258.40/x
  3. Step 3: Cross multiply
    1,399,878x = 1,932,428.78 × 941,258.40
  4. Step 4: Simplify right side
    1,399,878x = 1,818,914,816,870.46
  5. Step 5: Solve for x
    x = 1,818,914,816,870.46/1,399,878
  6. Step 6: Final answer
    x = 1,299,338.10

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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.