Home / 1,378,610.10-1,902,448.68-766,761.04

Finding the Fourth Proportional to 1,378,610.10, 1,902,448.68 and 766,761.04

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Solution

The fourth proportional to 1,378,610.10, 1,902,448.68 and 766,761.04 is: 1,058,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,610.10 : 1,902,448.68 = 766,761.04 : x
  2. Step 2: Convert to fraction form
    1,378,610.10/1,902,448.68 = 766,761.04/x
  3. Step 3: Cross multiply
    1,378,610.10x = 1,902,448.68 × 766,761.04
  4. Step 4: Simplify right side
    1,378,610.10x = 1,458,723,528,423.43
  5. Step 5: Solve for x
    x = 1,458,723,528,423.43/1,378,610.10
  6. Step 6: Final answer
    x = 1,058,111.74

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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.