Home / 689,922.20-1,034,883.30-291,013.40

Finding the Fourth Proportional to 689,922.20, 1,034,883.30 and 291,013.40

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Solution

The fourth proportional to 689,922.20, 1,034,883.30 and 291,013.40 is: 436,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,922.20 : 1,034,883.30 = 291,013.40 : x
  2. Step 2: Convert to fraction form
    689,922.20/1,034,883.30 = 291,013.40/x
  3. Step 3: Cross multiply
    689,922.20x = 1,034,883.30 × 291,013.40
  4. Step 4: Simplify right side
    689,922.20x = 301,164,907,736.22
  5. Step 5: Solve for x
    x = 301,164,907,736.22/689,922.20
  6. Step 6: Final answer
    x = 436,520.10

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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.