Home / 1,245,734.20-1,864,664.70-978,045.40

Finding the Fourth Proportional to 1,245,734.20, 1,864,664.70 and 978,045.40

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Solution

The fourth proportional to 1,245,734.20, 1,864,664.70 and 978,045.40 is: 1,463,977.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,734.20 : 1,864,664.70 = 978,045.40 : x
  2. Step 2: Convert to fraction form
    1,245,734.20/1,864,664.70 = 978,045.40/x
  3. Step 3: Cross multiply
    1,245,734.20x = 1,864,664.70 × 978,045.40
  4. Step 4: Simplify right side
    1,245,734.20x = 1,823,726,732,377.38
  5. Step 5: Solve for x
    x = 1,823,726,732,377.38/1,245,734.20
  6. Step 6: Final answer
    x = 1,463,977.41

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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.