Home / 1,440,019.82-1,987,206.68-786,637.92

Finding the Fourth Proportional to 1,440,019.82, 1,987,206.68 and 786,637.92

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Solution

The fourth proportional to 1,440,019.82, 1,987,206.68 and 786,637.92 is: 1,085,549.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,019.82 : 1,987,206.68 = 786,637.92 : x
  2. Step 2: Convert to fraction form
    1,440,019.82/1,987,206.68 = 786,637.92/x
  3. Step 3: Cross multiply
    1,440,019.82x = 1,987,206.68 × 786,637.92
  4. Step 4: Simplify right side
    1,440,019.82x = 1,563,212,129,365.31
  5. Step 5: Solve for x
    x = 1,563,212,129,365.31/1,440,019.82
  6. Step 6: Final answer
    x = 1,085,549.04

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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.