Home / 1,425,118.41-1,966,665.30-771,745.55

Finding the Fourth Proportional to 1,425,118.41, 1,966,665.30 and 771,745.55

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Solution

The fourth proportional to 1,425,118.41, 1,966,665.30 and 771,745.55 is: 1,065,009.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,118.41 : 1,966,665.30 = 771,745.55 : x
  2. Step 2: Convert to fraction form
    1,425,118.41/1,966,665.30 = 771,745.55/x
  3. Step 3: Cross multiply
    1,425,118.41x = 1,966,665.30 × 771,745.55
  4. Step 4: Simplify right side
    1,425,118.41x = 1,517,765,193,614.42
  5. Step 5: Solve for x
    x = 1,517,765,193,614.42/1,425,118.41
  6. Step 6: Final answer
    x = 1,065,009.88

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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.