Home / 1,425,202.40-1,966,778.88-780,662.72

Finding the Fourth Proportional to 1,425,202.40, 1,966,778.88 and 780,662.72

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Solution

The fourth proportional to 1,425,202.40, 1,966,778.88 and 780,662.72 is: 1,077,314.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,202.40 : 1,966,778.88 = 780,662.72 : x
  2. Step 2: Convert to fraction form
    1,425,202.40/1,966,778.88 = 780,662.72/x
  3. Step 3: Cross multiply
    1,425,202.40x = 1,966,778.88 × 780,662.72
  4. Step 4: Simplify right side
    1,425,202.40x = 1,535,390,950,099.35
  5. Step 5: Solve for x
    x = 1,535,390,950,099.35/1,425,202.40
  6. Step 6: Final answer
    x = 1,077,314.32

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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.