Home / 1,159,939.20-1,739,908.80-412,060.80

Finding the Fourth Proportional to 1,159,939.20, 1,739,908.80 and 412,060.80

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Solution

The fourth proportional to 1,159,939.20, 1,739,908.80 and 412,060.80 is: 618,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,939.20 : 1,739,908.80 = 412,060.80 : x
  2. Step 2: Convert to fraction form
    1,159,939.20/1,739,908.80 = 412,060.80/x
  3. Step 3: Cross multiply
    1,159,939.20x = 1,739,908.80 × 412,060.80
  4. Step 4: Simplify right side
    1,159,939.20x = 716,948,212,055.04
  5. Step 5: Solve for x
    x = 716,948,212,055.04/1,159,939.20
  6. Step 6: Final answer
    x = 618,091.20

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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.