Home / 856,253.24-1,284,528.26-287,689.80

Finding the Fourth Proportional to 856,253.24, 1,284,528.26 and 287,689.80

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Solution

The fourth proportional to 856,253.24, 1,284,528.26 and 287,689.80 is: 431,584.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,253.24 : 1,284,528.26 = 287,689.80 : x
  2. Step 2: Convert to fraction form
    856,253.24/1,284,528.26 = 287,689.80/x
  3. Step 3: Cross multiply
    856,253.24x = 1,284,528.26 × 287,689.80
  4. Step 4: Simplify right side
    856,253.24x = 369,545,678,518.96
  5. Step 5: Solve for x
    x = 369,545,678,518.96/856,253.24
  6. Step 6: Final answer
    x = 431,584.56

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Double scale
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1.5x scale

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.