Home / 1,215,334.96-1,677,019.26-671,438.32

Finding the Fourth Proportional to 1,215,334.96, 1,677,019.26 and 671,438.32

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Solution

The fourth proportional to 1,215,334.96, 1,677,019.26 and 671,438.32 is: 926,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,334.96 : 1,677,019.26 = 671,438.32 : x
  2. Step 2: Convert to fraction form
    1,215,334.96/1,677,019.26 = 671,438.32/x
  3. Step 3: Cross multiply
    1,215,334.96x = 1,677,019.26 × 671,438.32
  4. Step 4: Simplify right side
    1,215,334.96x = 1,126,014,994,542.04
  5. Step 5: Solve for x
    x = 1,126,014,994,542.04/1,215,334.96
  6. Step 6: Final answer
    x = 926,505.89

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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.