Home / 2,672,425.20-4,008,637.80-779,228.40

Finding the Fourth Proportional to 2,672,425.20, 4,008,637.80 and 779,228.40

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Solution

The fourth proportional to 2,672,425.20, 4,008,637.80 and 779,228.40 is: 1,168,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,672,425.20 : 4,008,637.80 = 779,228.40 : x
  2. Step 2: Convert to fraction form
    2,672,425.20/4,008,637.80 = 779,228.40/x
  3. Step 3: Cross multiply
    2,672,425.20x = 4,008,637.80 × 779,228.40
  4. Step 4: Simplify right side
    2,672,425.20x = 3,123,644,419,073.52
  5. Step 5: Solve for x
    x = 3,123,644,419,073.52/2,672,425.20
  6. Step 6: Final answer
    x = 1,168,842.60

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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.