Home / 907,755.05-1,252,661.56-520,292.72

Finding the Fourth Proportional to 907,755.05, 1,252,661.56 and 520,292.72

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Solution

The fourth proportional to 907,755.05, 1,252,661.56 and 520,292.72 is: 717,980.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,755.05 : 1,252,661.56 = 520,292.72 : x
  2. Step 2: Convert to fraction form
    907,755.05/1,252,661.56 = 520,292.72/x
  3. Step 3: Cross multiply
    907,755.05x = 1,252,661.56 × 520,292.72
  4. Step 4: Simplify right side
    907,755.05x = 651,750,685,076.54
  5. Step 5: Solve for x
    x = 651,750,685,076.54/907,755.05
  6. Step 6: Final answer
    x = 717,980.78

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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.