Home / 907,738.12-1,252,667.94-499,831.40

Finding the Fourth Proportional to 907,738.12, 1,252,667.94 and 499,831.40

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Solution

The fourth proportional to 907,738.12, 1,252,667.94 and 499,831.40 is: 689,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,738.12 : 1,252,667.94 = 499,831.40 : x
  2. Step 2: Convert to fraction form
    907,738.12/1,252,667.94 = 499,831.40/x
  3. Step 3: Cross multiply
    907,738.12x = 1,252,667.94 × 499,831.40
  4. Step 4: Simplify right side
    907,738.12x = 626,122,770,185.32
  5. Step 5: Solve for x
    x = 626,122,770,185.32/907,738.12
  6. Step 6: Final answer
    x = 689,761.46

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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.