Home / 689,766.45-1,034,805.36-210,037.14

Finding the Fourth Proportional to 689,766.45, 1,034,805.36 and 210,037.14

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Solution

The fourth proportional to 689,766.45, 1,034,805.36 and 210,037.14 is: 315,103.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,766.45 : 1,034,805.36 = 210,037.14 : x
  2. Step 2: Convert to fraction form
    689,766.45/1,034,805.36 = 210,037.14/x
  3. Step 3: Cross multiply
    689,766.45x = 1,034,805.36 × 210,037.14
  4. Step 4: Simplify right side
    689,766.45x = 217,347,558,271.07
  5. Step 5: Solve for x
    x = 217,347,558,271.07/689,766.45
  6. Step 6: Final answer
    x = 315,103.12

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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.