Home / 688,614.10-1,032,921.15-419,175.70

Finding the Fourth Proportional to 688,614.10, 1,032,921.15 and 419,175.70

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Solution

The fourth proportional to 688,614.10, 1,032,921.15 and 419,175.70 is: 628,763.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,614.10 : 1,032,921.15 = 419,175.70 : x
  2. Step 2: Convert to fraction form
    688,614.10/1,032,921.15 = 419,175.70/x
  3. Step 3: Cross multiply
    688,614.10x = 1,032,921.15 × 419,175.70
  4. Step 4: Simplify right side
    688,614.10x = 432,975,446,096.06
  5. Step 5: Solve for x
    x = 432,975,446,096.06/688,614.10
  6. Step 6: Final answer
    x = 628,763.55

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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.