Home / 1,438,917.12-1,985,709.92-785,544.17

Finding the Fourth Proportional to 1,438,917.12, 1,985,709.92 and 785,544.17

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Solution

The fourth proportional to 1,438,917.12, 1,985,709.92 and 785,544.17 is: 1,084,053.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,917.12 : 1,985,709.92 = 785,544.17 : x
  2. Step 2: Convert to fraction form
    1,438,917.12/1,985,709.92 = 785,544.17/x
  3. Step 3: Cross multiply
    1,438,917.12x = 1,985,709.92 × 785,544.17
  4. Step 4: Simplify right side
    1,438,917.12x = 1,559,862,837,110.90
  5. Step 5: Solve for x
    x = 1,559,862,837,110.90/1,438,917.12
  6. Step 6: Final answer
    x = 1,084,053.29

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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.