Home / 1,230,609.70-1,845,902.40-389,161.45

Finding the Fourth Proportional to 1,230,609.70, 1,845,902.40 and 389,161.45

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Solution

The fourth proportional to 1,230,609.70, 1,845,902.40 and 389,161.45 is: 583,738.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,609.70 : 1,845,902.40 = 389,161.45 : x
  2. Step 2: Convert to fraction form
    1,230,609.70/1,845,902.40 = 389,161.45/x
  3. Step 3: Cross multiply
    1,230,609.70x = 1,845,902.40 × 389,161.45
  4. Step 4: Simplify right side
    1,230,609.70x = 718,354,054,542.48
  5. Step 5: Solve for x
    x = 718,354,054,542.48/1,230,609.70
  6. Step 6: Final answer
    x = 583,738.33

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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.