Home / 680,605.64-1,021,056.24-207,278.54

Finding the Fourth Proportional to 680,605.64, 1,021,056.24 and 207,278.54

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Solution

The fourth proportional to 680,605.64, 1,021,056.24 and 207,278.54 is: 310,962.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,605.64 : 1,021,056.24 = 207,278.54 : x
  2. Step 2: Convert to fraction form
    680,605.64/1,021,056.24 = 207,278.54/x
  3. Step 3: Cross multiply
    680,605.64x = 1,021,056.24 × 207,278.54
  4. Step 4: Simplify right side
    680,605.64x = 211,643,046,685.09
  5. Step 5: Solve for x
    x = 211,643,046,685.09/680,605.64
  6. Step 6: Final answer
    x = 310,962.82

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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.