Home / 685,871.56-1,029,101.26-353,680.84

Finding the Fourth Proportional to 685,871.56, 1,029,101.26 and 353,680.84

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Solution

The fourth proportional to 685,871.56, 1,029,101.26 and 353,680.84 is: 530,672.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,871.56 : 1,029,101.26 = 353,680.84 : x
  2. Step 2: Convert to fraction form
    685,871.56/1,029,101.26 = 353,680.84/x
  3. Step 3: Cross multiply
    685,871.56x = 1,029,101.26 × 353,680.84
  4. Step 4: Simplify right side
    685,871.56x = 363,973,398,081.86
  5. Step 5: Solve for x
    x = 363,973,398,081.86/685,871.56
  6. Step 6: Final answer
    x = 530,672.82

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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.