Home / 655,870.10-981,583.07-403,310.54

Finding the Fourth Proportional to 655,870.10, 981,583.07 and 403,310.54

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Solution

The fourth proportional to 655,870.10, 981,583.07 and 403,310.54 is: 603,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,870.10 : 981,583.07 = 403,310.54 : x
  2. Step 2: Convert to fraction form
    655,870.10/981,583.07 = 403,310.54/x
  3. Step 3: Cross multiply
    655,870.10x = 981,583.07 × 403,310.54
  4. Step 4: Simplify right side
    655,870.10x = 395,882,798,453.96
  5. Step 5: Solve for x
    x = 395,882,798,453.96/655,870.10
  6. Step 6: Final answer
    x = 603,599.40

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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.