Home / 857,923.92-1,286,895.80-258,890.27

Finding the Fourth Proportional to 857,923.92, 1,286,895.80 and 258,890.27

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Solution

The fourth proportional to 857,923.92, 1,286,895.80 and 258,890.27 is: 388,338.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,923.92 : 1,286,895.80 = 258,890.27 : x
  2. Step 2: Convert to fraction form
    857,923.92/1,286,895.80 = 258,890.27/x
  3. Step 3: Cross multiply
    857,923.92x = 1,286,895.80 × 258,890.27
  4. Step 4: Simplify right side
    857,923.92x = 333,164,799,829.42
  5. Step 5: Solve for x
    x = 333,164,799,829.42/857,923.92
  6. Step 6: Final answer
    x = 388,338.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.