Home / 907,735.05-1,252,624.79-499,759.43

Finding the Fourth Proportional to 907,735.05, 1,252,624.79 and 499,759.43

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Solution

The fourth proportional to 907,735.05, 1,252,624.79 and 499,759.43 is: 689,640.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,735.05 : 1,252,624.79 = 499,759.43 : x
  2. Step 2: Convert to fraction form
    907,735.05/1,252,624.79 = 499,759.43/x
  3. Step 3: Cross multiply
    907,735.05x = 1,252,624.79 × 499,759.43
  4. Step 4: Simplify right side
    907,735.05x = 626,011,046,040.54
  5. Step 5: Solve for x
    x = 626,011,046,040.54/907,735.05
  6. Step 6: Final answer
    x = 689,640.71

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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.