Home / 857,790.52-1,286,311.94-289,065.64

Finding the Fourth Proportional to 857,790.52, 1,286,311.94 and 289,065.64

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Solution

The fourth proportional to 857,790.52, 1,286,311.94 and 289,065.64 is: 433,472.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,790.52 : 1,286,311.94 = 289,065.64 : x
  2. Step 2: Convert to fraction form
    857,790.52/1,286,311.94 = 289,065.64/x
  3. Step 3: Cross multiply
    857,790.52x = 1,286,311.94 × 289,065.64
  4. Step 4: Simplify right side
    857,790.52x = 371,828,584,175.74
  5. Step 5: Solve for x
    x = 371,828,584,175.74/857,790.52
  6. Step 6: Final answer
    x = 433,472.48

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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.