Home / 1,909,778.72-2,865,930.05-899,189.64

Finding the Fourth Proportional to 1,909,778.72, 2,865,930.05 and 899,189.64

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Solution

The fourth proportional to 1,909,778.72, 2,865,930.05 and 899,189.64 is: 1,349,378.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,778.72 : 2,865,930.05 = 899,189.64 : x
  2. Step 2: Convert to fraction form
    1,909,778.72/2,865,930.05 = 899,189.64/x
  3. Step 3: Cross multiply
    1,909,778.72x = 2,865,930.05 × 899,189.64
  4. Step 4: Simplify right side
    1,909,778.72x = 2,577,014,612,172.66
  5. Step 5: Solve for x
    x = 2,577,014,612,172.66/1,909,778.72
  6. Step 6: Final answer
    x = 1,349,378.64

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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.