Home / 1,242,503.67-1,863,778.85-389,556.42

Finding the Fourth Proportional to 1,242,503.67, 1,863,778.85 and 389,556.42

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Solution

The fourth proportional to 1,242,503.67, 1,863,778.85 and 389,556.42 is: 584,341.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,503.67 : 1,863,778.85 = 389,556.42 : x
  2. Step 2: Convert to fraction form
    1,242,503.67/1,863,778.85 = 389,556.42/x
  3. Step 3: Cross multiply
    1,242,503.67x = 1,863,778.85 × 389,556.42
  4. Step 4: Simplify right side
    1,242,503.67x = 726,047,014,529.94
  5. Step 5: Solve for x
    x = 726,047,014,529.94/1,242,503.67
  6. Step 6: Final answer
    x = 584,341.95

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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.