Home / 680,347.96-1,020,521.97-207,168.64

Finding the Fourth Proportional to 680,347.96, 1,020,521.97 and 207,168.64

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Solution

The fourth proportional to 680,347.96, 1,020,521.97 and 207,168.64 is: 310,752.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,347.96 : 1,020,521.97 = 207,168.64 : x
  2. Step 2: Convert to fraction form
    680,347.96/1,020,521.97 = 207,168.64/x
  3. Step 3: Cross multiply
    680,347.96x = 1,020,521.97 × 207,168.64
  4. Step 4: Simplify right side
    680,347.96x = 211,420,146,063.72
  5. Step 5: Solve for x
    x = 211,420,146,063.72/680,347.96
  6. Step 6: Final answer
    x = 310,752.97

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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.