Home / 1,215,859.92-1,677,852.36-679,315.92

Finding the Fourth Proportional to 1,215,859.92, 1,677,852.36 and 679,315.92

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Solution

The fourth proportional to 1,215,859.92, 1,677,852.36 and 679,315.92 is: 937,436.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,859.92 : 1,677,852.36 = 679,315.92 : x
  2. Step 2: Convert to fraction form
    1,215,859.92/1,677,852.36 = 679,315.92/x
  3. Step 3: Cross multiply
    1,215,859.92x = 1,677,852.36 × 679,315.92
  4. Step 4: Simplify right side
    1,215,859.92x = 1,139,791,819,557.57
  5. Step 5: Solve for x
    x = 1,139,791,819,557.57/1,215,859.92
  6. Step 6: Final answer
    x = 937,436.79

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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.