Home / 945,947.76-1,305,435.45-516,255.72

Finding the Fourth Proportional to 945,947.76, 1,305,435.45 and 516,255.72

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Solution

The fourth proportional to 945,947.76, 1,305,435.45 and 516,255.72 is: 712,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,947.76 : 1,305,435.45 = 516,255.72 : x
  2. Step 2: Convert to fraction form
    945,947.76/1,305,435.45 = 516,255.72/x
  3. Step 3: Cross multiply
    945,947.76x = 1,305,435.45 × 516,255.72
  4. Step 4: Simplify right side
    945,947.76x = 673,938,518,153.27
  5. Step 5: Solve for x
    x = 673,938,518,153.27/945,947.76
  6. Step 6: Final answer
    x = 712,447.92

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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.