Home / 685,108.56-1,026,481.59-454,155.96

Finding the Fourth Proportional to 685,108.56, 1,026,481.59 and 454,155.96

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Solution

The fourth proportional to 685,108.56, 1,026,481.59 and 454,155.96 is: 680,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,108.56 : 1,026,481.59 = 454,155.96 : x
  2. Step 2: Convert to fraction form
    685,108.56/1,026,481.59 = 454,155.96/x
  3. Step 3: Cross multiply
    685,108.56x = 1,026,481.59 × 454,155.96
  4. Step 4: Simplify right side
    685,108.56x = 466,182,731,928.78
  5. Step 5: Solve for x
    x = 466,182,731,928.78/685,108.56
  6. Step 6: Final answer
    x = 680,450.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.