Home / 689,487.40-1,034,231.10-465,538.60

Finding the Fourth Proportional to 689,487.40, 1,034,231.10 and 465,538.60

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Solution

The fourth proportional to 689,487.40, 1,034,231.10 and 465,538.60 is: 698,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,487.40 : 1,034,231.10 = 465,538.60 : x
  2. Step 2: Convert to fraction form
    689,487.40/1,034,231.10 = 465,538.60/x
  3. Step 3: Cross multiply
    689,487.40x = 1,034,231.10 × 465,538.60
  4. Step 4: Simplify right side
    689,487.40x = 481,474,498,370.46
  5. Step 5: Solve for x
    x = 481,474,498,370.46/689,487.40
  6. Step 6: Final answer
    x = 698,307.90

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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.