Home / 763,934.60-1,145,556.30-342,993.80

Finding the Fourth Proportional to 763,934.60, 1,145,556.30 and 342,993.80

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Solution

The fourth proportional to 763,934.60, 1,145,556.30 and 342,993.80 is: 514,335.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,934.60 : 1,145,556.30 = 342,993.80 : x
  2. Step 2: Convert to fraction form
    763,934.60/1,145,556.30 = 342,993.80/x
  3. Step 3: Cross multiply
    763,934.60x = 1,145,556.30 × 342,993.80
  4. Step 4: Simplify right side
    763,934.60x = 392,918,708,450.94
  5. Step 5: Solve for x
    x = 392,918,708,450.94/763,934.60
  6. Step 6: Final answer
    x = 514,335.53

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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.