Home / 730,336.40-1,095,917.20-393,369.92

Finding the Fourth Proportional to 730,336.40, 1,095,917.20 and 393,369.92

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Solution

The fourth proportional to 730,336.40, 1,095,917.20 and 393,369.92 is: 590,277.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    730,336.40 : 1,095,917.20 = 393,369.92 : x
  2. Step 2: Convert to fraction form
    730,336.40/1,095,917.20 = 393,369.92/x
  3. Step 3: Cross multiply
    730,336.40x = 1,095,917.20 × 393,369.92
  4. Step 4: Simplify right side
    730,336.40x = 431,100,861,290.62
  5. Step 5: Solve for x
    x = 431,100,861,290.62/730,336.40
  6. Step 6: Final answer
    x = 590,277.11

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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.