Home / 1,139,021.70-1,571,397.90-655,326.56

Finding the Fourth Proportional to 1,139,021.70, 1,571,397.90 and 655,326.56

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Solution

The fourth proportional to 1,139,021.70, 1,571,397.90 and 655,326.56 is: 904,090.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,021.70 : 1,571,397.90 = 655,326.56 : x
  2. Step 2: Convert to fraction form
    1,139,021.70/1,571,397.90 = 655,326.56/x
  3. Step 3: Cross multiply
    1,139,021.70x = 1,571,397.90 × 655,326.56
  4. Step 4: Simplify right side
    1,139,021.70x = 1,029,778,780,198.22
  5. Step 5: Solve for x
    x = 1,029,778,780,198.22/1,139,021.70
  6. Step 6: Final answer
    x = 904,090.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.