Home / 680,146.20-1,019,927.70-343,056.60

Finding the Fourth Proportional to 680,146.20, 1,019,927.70 and 343,056.60

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Solution

The fourth proportional to 680,146.20, 1,019,927.70 and 343,056.60 is: 514,437.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,146.20 : 1,019,927.70 = 343,056.60 : x
  2. Step 2: Convert to fraction form
    680,146.20/1,019,927.70 = 343,056.60/x
  3. Step 3: Cross multiply
    680,146.20x = 1,019,927.70 × 343,056.60
  4. Step 4: Simplify right side
    680,146.20x = 349,892,929,007.82
  5. Step 5: Solve for x
    x = 349,892,929,007.82/680,146.20
  6. Step 6: Final answer
    x = 514,437.82

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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.