Home / 907,339.70-1,251,982.27-520,083.86

Finding the Fourth Proportional to 907,339.70, 1,251,982.27 and 520,083.86

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Solution

The fourth proportional to 907,339.70, 1,251,982.27 and 520,083.86 is: 717,631.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,339.70 : 1,251,982.27 = 520,083.86 : x
  2. Step 2: Convert to fraction form
    907,339.70/1,251,982.27 = 520,083.86/x
  3. Step 3: Cross multiply
    907,339.70x = 1,251,982.27 × 520,083.86
  4. Step 4: Simplify right side
    907,339.70x = 651,135,770,690.56
  5. Step 5: Solve for x
    x = 651,135,770,690.56/907,339.70
  6. Step 6: Final answer
    x = 717,631.74

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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.