Home / 1,205,408.90-1,807,391.64-406,672.76

Finding the Fourth Proportional to 1,205,408.90, 1,807,391.64 and 406,672.76

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Solution

The fourth proportional to 1,205,408.90, 1,807,391.64 and 406,672.76 is: 609,765.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,408.90 : 1,807,391.64 = 406,672.76 : x
  2. Step 2: Convert to fraction form
    1,205,408.90/1,807,391.64 = 406,672.76/x
  3. Step 3: Cross multiply
    1,205,408.90x = 1,807,391.64 × 406,672.76
  4. Step 4: Simplify right side
    1,205,408.90x = 735,016,946,639.73
  5. Step 5: Solve for x
    x = 735,016,946,639.73/1,205,408.90
  6. Step 6: Final answer
    x = 609,765.65

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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.