Home / 1,218,276.48-1,681,241.36-666,982.88

Finding the Fourth Proportional to 1,218,276.48, 1,681,241.36 and 666,982.88

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Solution

The fourth proportional to 1,218,276.48, 1,681,241.36 and 666,982.88 is: 920,447.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,276.48 : 1,681,241.36 = 666,982.88 : x
  2. Step 2: Convert to fraction form
    1,218,276.48/1,681,241.36 = 666,982.88/x
  3. Step 3: Cross multiply
    1,218,276.48x = 1,681,241.36 × 666,982.88
  4. Step 4: Simplify right side
    1,218,276.48x = 1,121,359,204,267.92
  5. Step 5: Solve for x
    x = 1,121,359,204,267.92/1,218,276.48
  6. Step 6: Final answer
    x = 920,447.22

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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.