Home / 1,242,779.15-1,715,018.97-698,914.78

Finding the Fourth Proportional to 1,242,779.15, 1,715,018.97 and 698,914.78

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Solution

The fourth proportional to 1,242,779.15, 1,715,018.97 and 698,914.78 is: 964,493.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,779.15 : 1,715,018.97 = 698,914.78 : x
  2. Step 2: Convert to fraction form
    1,242,779.15/1,715,018.97 = 698,914.78/x
  3. Step 3: Cross multiply
    1,242,779.15x = 1,715,018.97 × 698,914.78
  4. Step 4: Simplify right side
    1,242,779.15x = 1,198,652,104,446.76
  5. Step 5: Solve for x
    x = 1,198,652,104,446.76/1,242,779.15
  6. Step 6: Final answer
    x = 964,493.25

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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.