Home / 1,215,871.80-1,677,850.84-671,979.48

Finding the Fourth Proportional to 1,215,871.80, 1,677,850.84 and 671,979.48

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Solution

The fourth proportional to 1,215,871.80, 1,677,850.84 and 671,979.48 is: 927,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,871.80 : 1,677,850.84 = 671,979.48 : x
  2. Step 2: Convert to fraction form
    1,215,871.80/1,677,850.84 = 671,979.48/x
  3. Step 3: Cross multiply
    1,215,871.80x = 1,677,850.84 × 671,979.48
  4. Step 4: Simplify right side
    1,215,871.80x = 1,127,481,334,980.76
  5. Step 5: Solve for x
    x = 1,127,481,334,980.76/1,215,871.80
  6. Step 6: Final answer
    x = 927,302.81

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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.