Home / 771,108.45-1,064,133.29-431,642.31

Finding the Fourth Proportional to 771,108.45, 1,064,133.29 and 431,642.31

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Solution

The fourth proportional to 771,108.45, 1,064,133.29 and 431,642.31 is: 595,668.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,108.45 : 1,064,133.29 = 431,642.31 : x
  2. Step 2: Convert to fraction form
    771,108.45/1,064,133.29 = 431,642.31/x
  3. Step 3: Cross multiply
    771,108.45x = 1,064,133.29 × 431,642.31
  4. Step 4: Simplify right side
    771,108.45x = 459,324,951,443.50
  5. Step 5: Solve for x
    x = 459,324,951,443.50/771,108.45
  6. Step 6: Final answer
    x = 595,668.42

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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.