Home / 856,197.81-1,284,718.76-400,819.92

Finding the Fourth Proportional to 856,197.81, 1,284,718.76 and 400,819.92

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Solution

The fourth proportional to 856,197.81, 1,284,718.76 and 400,819.92 is: 601,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,197.81 : 1,284,718.76 = 400,819.92 : x
  2. Step 2: Convert to fraction form
    856,197.81/1,284,718.76 = 400,819.92/x
  3. Step 3: Cross multiply
    856,197.81x = 1,284,718.76 × 400,819.92
  4. Step 4: Simplify right side
    856,197.81x = 514,940,868,601.60
  5. Step 5: Solve for x
    x = 514,940,868,601.60/856,197.81
  6. Step 6: Final answer
    x = 601,427.45

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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.