Home / 1,029,787.40-1,541,570.70-905,371.40

Finding the Fourth Proportional to 1,029,787.40, 1,541,570.70 and 905,371.40

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Solution

The fourth proportional to 1,029,787.40, 1,541,570.70 and 905,371.40 is: 1,355,322.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,029,787.40 : 1,541,570.70 = 905,371.40 : x
  2. Step 2: Convert to fraction form
    1,029,787.40/1,541,570.70 = 905,371.40/x
  3. Step 3: Cross multiply
    1,029,787.40x = 1,541,570.70 × 905,371.40
  4. Step 4: Simplify right side
    1,029,787.40x = 1,395,694,022,857.98
  5. Step 5: Solve for x
    x = 1,395,694,022,857.98/1,029,787.40
  6. Step 6: Final answer
    x = 1,355,322.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.