Home / 856,846.40-1,285,269.60-502,260.80

Finding the Fourth Proportional to 856,846.40, 1,285,269.60 and 502,260.80

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Solution

The fourth proportional to 856,846.40, 1,285,269.60 and 502,260.80 is: 753,391.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,846.40 : 1,285,269.60 = 502,260.80 : x
  2. Step 2: Convert to fraction form
    856,846.40/1,285,269.60 = 502,260.80/x
  3. Step 3: Cross multiply
    856,846.40x = 1,285,269.60 × 502,260.80
  4. Step 4: Simplify right side
    856,846.40x = 645,540,537,511.68
  5. Step 5: Solve for x
    x = 645,540,537,511.68/856,846.40
  6. Step 6: Final answer
    x = 753,391.20

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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.