Home / 699,991.80-1,048,821.30-658,001.40

Finding the Fourth Proportional to 699,991.80, 1,048,821.30 and 658,001.40

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Solution

The fourth proportional to 699,991.80, 1,048,821.30 and 658,001.40 is: 985,905.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,991.80 : 1,048,821.30 = 658,001.40 : x
  2. Step 2: Convert to fraction form
    699,991.80/1,048,821.30 = 658,001.40/x
  3. Step 3: Cross multiply
    699,991.80x = 1,048,821.30 × 658,001.40
  4. Step 4: Simplify right side
    699,991.80x = 690,125,883,749.82
  5. Step 5: Solve for x
    x = 690,125,883,749.82/699,991.80
  6. Step 6: Final answer
    x = 985,905.67

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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.