Home / 1,139,272.56-1,572,165.05-629,957.52

Finding the Fourth Proportional to 1,139,272.56, 1,572,165.05 and 629,957.52

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Solution

The fourth proportional to 1,139,272.56, 1,572,165.05 and 629,957.52 is: 869,324.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,272.56 : 1,572,165.05 = 629,957.52 : x
  2. Step 2: Convert to fraction form
    1,139,272.56/1,572,165.05 = 629,957.52/x
  3. Step 3: Cross multiply
    1,139,272.56x = 1,572,165.05 × 629,957.52
  4. Step 4: Simplify right side
    1,139,272.56x = 990,397,192,778.89
  5. Step 5: Solve for x
    x = 990,397,192,778.89/1,139,272.56
  6. Step 6: Final answer
    x = 869,324.19

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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.