Home / 688,604.10-1,032,906.15-419,165.70

Finding the Fourth Proportional to 688,604.10, 1,032,906.15 and 419,165.70

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Solution

The fourth proportional to 688,604.10, 1,032,906.15 and 419,165.70 is: 628,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,604.10 : 1,032,906.15 = 419,165.70 : x
  2. Step 2: Convert to fraction form
    688,604.10/1,032,906.15 = 419,165.70/x
  3. Step 3: Cross multiply
    688,604.10x = 1,032,906.15 × 419,165.70
  4. Step 4: Simplify right side
    688,604.10x = 432,958,829,399.06
  5. Step 5: Solve for x
    x = 432,958,829,399.06/688,604.10
  6. Step 6: Final answer
    x = 628,748.55

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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.