Home / 1,272,021.70-1,785,554.30-1,272,021.70

Finding the Fourth Proportional to 1,272,021.70, 1,785,554.30 and 1,272,021.70

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Solution

The fourth proportional to 1,272,021.70, 1,785,554.30 and 1,272,021.70 is: 1,785,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,021.70 : 1,785,554.30 = 1,272,021.70 : x
  2. Step 2: Convert to fraction form
    1,272,021.70/1,785,554.30 = 1,272,021.70/x
  3. Step 3: Cross multiply
    1,272,021.70x = 1,785,554.30 × 1,272,021.70
  4. Step 4: Simplify right side
    1,272,021.70x = 2,271,263,816,128.31
  5. Step 5: Solve for x
    x = 2,271,263,816,128.31/1,272,021.70
  6. Step 6: Final answer
    x = 1,785,554.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.