Home / 899,000.72-1,239,463.33-641,171.65

Finding the Fourth Proportional to 899,000.72, 1,239,463.33 and 641,171.65

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Solution

The fourth proportional to 899,000.72, 1,239,463.33 and 641,171.65 is: 883,991.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,000.72 : 1,239,463.33 = 641,171.65 : x
  2. Step 2: Convert to fraction form
    899,000.72/1,239,463.33 = 641,171.65/x
  3. Step 3: Cross multiply
    899,000.72x = 1,239,463.33 × 641,171.65
  4. Step 4: Simplify right side
    899,000.72x = 794,708,748,410.60
  5. Step 5: Solve for x
    x = 794,708,748,410.60/899,000.72
  6. Step 6: Final answer
    x = 883,991.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.