Home / 757,470.12-1,045,922.94-723,221.70

Finding the Fourth Proportional to 757,470.12, 1,045,922.94 and 723,221.70

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Solution

The fourth proportional to 757,470.12, 1,045,922.94 and 723,221.70 is: 998,632.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,470.12 : 1,045,922.94 = 723,221.70 : x
  2. Step 2: Convert to fraction form
    757,470.12/1,045,922.94 = 723,221.70/x
  3. Step 3: Cross multiply
    757,470.12x = 1,045,922.94 × 723,221.70
  4. Step 4: Simplify right side
    757,470.12x = 756,434,166,735.80
  5. Step 5: Solve for x
    x = 756,434,166,735.80/757,470.12
  6. Step 6: Final answer
    x = 998,632.35

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1.5x scale

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.