Home / 1,215,435.43-1,677,379.89-671,571.28

Finding the Fourth Proportional to 1,215,435.43, 1,677,379.89 and 671,571.28

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Solution

The fourth proportional to 1,215,435.43, 1,677,379.89 and 671,571.28 is: 926,812.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,435.43 : 1,677,379.89 = 671,571.28 : x
  2. Step 2: Convert to fraction form
    1,215,435.43/1,677,379.89 = 671,571.28/x
  3. Step 3: Cross multiply
    1,215,435.43x = 1,677,379.89 × 671,571.28
  4. Step 4: Simplify right side
    1,215,435.43x = 1,126,480,159,773.56
  5. Step 5: Solve for x
    x = 1,126,480,159,773.56/1,215,435.43
  6. Step 6: Final answer
    x = 926,812.01

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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.