Home / 1,425,199.25-1,966,775.48-780,630.21

Finding the Fourth Proportional to 1,425,199.25, 1,966,775.48 and 780,630.21

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Solution

The fourth proportional to 1,425,199.25, 1,966,775.48 and 780,630.21 is: 1,077,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,199.25 : 1,966,775.48 = 780,630.21 : x
  2. Step 2: Convert to fraction form
    1,425,199.25/1,966,775.48 = 780,630.21/x
  3. Step 3: Cross multiply
    1,425,199.25x = 1,966,775.48 × 780,630.21
  4. Step 4: Simplify right side
    1,425,199.25x = 1,535,324,354,999.46
  5. Step 5: Solve for x
    x = 1,535,324,354,999.46/1,425,199.25
  6. Step 6: Final answer
    x = 1,077,269.97

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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.