Home / 875,540.80-1,312,339.20-342,884.80

Finding the Fourth Proportional to 875,540.80, 1,312,339.20 and 342,884.80

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Solution

The fourth proportional to 875,540.80, 1,312,339.20 and 342,884.80 is: 513,946.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,540.80 : 1,312,339.20 = 342,884.80 : x
  2. Step 2: Convert to fraction form
    875,540.80/1,312,339.20 = 342,884.80/x
  3. Step 3: Cross multiply
    875,540.80x = 1,312,339.20 × 342,884.80
  4. Step 4: Simplify right side
    875,540.80x = 449,981,164,124.16
  5. Step 5: Solve for x
    x = 449,981,164,124.16/875,540.80
  6. Step 6: Final answer
    x = 513,946.54

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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.