Home / 856,073.27-1,284,194.88-316,470.98

Finding the Fourth Proportional to 856,073.27, 1,284,194.88 and 316,470.98

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Solution

The fourth proportional to 856,073.27, 1,284,194.88 and 316,470.98 is: 474,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,073.27 : 1,284,194.88 = 316,470.98 : x
  2. Step 2: Convert to fraction form
    856,073.27/1,284,194.88 = 316,470.98/x
  3. Step 3: Cross multiply
    856,073.27x = 1,284,194.88 × 316,470.98
  4. Step 4: Simplify right side
    856,073.27x = 406,410,412,184.58
  5. Step 5: Solve for x
    x = 406,410,412,184.58/856,073.27
  6. Step 6: Final answer
    x = 474,737.88

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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.