Home / 1,235,910.80-1,853,866.20-438,093.20

Finding the Fourth Proportional to 1,235,910.80, 1,853,866.20 and 438,093.20

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Solution

The fourth proportional to 1,235,910.80, 1,853,866.20 and 438,093.20 is: 657,139.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,910.80 : 1,853,866.20 = 438,093.20 : x
  2. Step 2: Convert to fraction form
    1,235,910.80/1,853,866.20 = 438,093.20/x
  3. Step 3: Cross multiply
    1,235,910.80x = 1,853,866.20 × 438,093.20
  4. Step 4: Simplify right side
    1,235,910.80x = 812,166,175,929.84
  5. Step 5: Solve for x
    x = 812,166,175,929.84/1,235,910.80
  6. Step 6: Final answer
    x = 657,139.80

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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.