Home / 815,570.80-1,125,033.78-757,838.86

Finding the Fourth Proportional to 815,570.80, 1,125,033.78 and 757,838.86

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Solution

The fourth proportional to 815,570.80, 1,125,033.78 and 757,838.86 is: 1,045,395.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,570.80 : 1,125,033.78 = 757,838.86 : x
  2. Step 2: Convert to fraction form
    815,570.80/1,125,033.78 = 757,838.86/x
  3. Step 3: Cross multiply
    815,570.80x = 1,125,033.78 × 757,838.86
  4. Step 4: Simplify right side
    815,570.80x = 852,594,317,296.69
  5. Step 5: Solve for x
    x = 852,594,317,296.69/815,570.80
  6. Step 6: Final answer
    x = 1,045,395.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.