Home / 680,601.45-1,021,533.04-343,878.76

Finding the Fourth Proportional to 680,601.45, 1,021,533.04 and 343,878.76

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Solution

The fourth proportional to 680,601.45, 1,021,533.04 and 343,878.76 is: 516,136.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,601.45 : 1,021,533.04 = 343,878.76 : x
  2. Step 2: Convert to fraction form
    680,601.45/1,021,533.04 = 343,878.76/x
  3. Step 3: Cross multiply
    680,601.45x = 1,021,533.04 × 343,878.76
  4. Step 4: Simplify right side
    680,601.45x = 351,283,514,873.79
  5. Step 5: Solve for x
    x = 351,283,514,873.79/680,601.45
  6. Step 6: Final answer
    x = 516,136.89

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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.