Home / 680,890.05-1,021,335.08-669,226.05

Finding the Fourth Proportional to 680,890.05, 1,021,335.08 and 669,226.05

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Solution

The fourth proportional to 680,890.05, 1,021,335.08 and 669,226.05 is: 1,003,839.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,890.05 : 1,021,335.08 = 669,226.05 : x
  2. Step 2: Convert to fraction form
    680,890.05/1,021,335.08 = 669,226.05/x
  3. Step 3: Cross multiply
    680,890.05x = 1,021,335.08 × 669,226.05
  4. Step 4: Simplify right side
    680,890.05x = 683,504,037,968.70
  5. Step 5: Solve for x
    x = 683,504,037,968.70/680,890.05
  6. Step 6: Final answer
    x = 1,003,839.08

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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.