Home / 1,791,009.40-2,686,514.10-1,190,021.80

Finding the Fourth Proportional to 1,791,009.40, 2,686,514.10 and 1,190,021.80

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Solution

The fourth proportional to 1,791,009.40, 2,686,514.10 and 1,190,021.80 is: 1,785,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,009.40 : 2,686,514.10 = 1,190,021.80 : x
  2. Step 2: Convert to fraction form
    1,791,009.40/2,686,514.10 = 1,190,021.80/x
  3. Step 3: Cross multiply
    1,791,009.40x = 2,686,514.10 × 1,190,021.80
  4. Step 4: Simplify right side
    1,791,009.40x = 3,197,010,345,007.38
  5. Step 5: Solve for x
    x = 3,197,010,345,007.38/1,791,009.40
  6. Step 6: Final answer
    x = 1,785,032.70

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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.