Home / 689,891.40-1,036,017.90-374,963.40

Finding the Fourth Proportional to 689,891.40, 1,036,017.90 and 374,963.40

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Solution

The fourth proportional to 689,891.40, 1,036,017.90 and 374,963.40 is: 563,086.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,891.40 : 1,036,017.90 = 374,963.40 : x
  2. Step 2: Convert to fraction form
    689,891.40/1,036,017.90 = 374,963.40/x
  3. Step 3: Cross multiply
    689,891.40x = 1,036,017.90 × 374,963.40
  4. Step 4: Simplify right side
    689,891.40x = 388,468,794,244.86
  5. Step 5: Solve for x
    x = 388,468,794,244.86/689,891.40
  6. Step 6: Final answer
    x = 563,086.88

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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.