Home / 447,496.52-671,142.27-127,642.31

Finding the Fourth Proportional to 447,496.52, 671,142.27 and 127,642.31

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Solution

The fourth proportional to 447,496.52, 671,142.27 and 127,642.31 is: 191,434.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,496.52 : 671,142.27 = 127,642.31 : x
  2. Step 2: Convert to fraction form
    447,496.52/671,142.27 = 127,642.31/x
  3. Step 3: Cross multiply
    447,496.52x = 671,142.27 × 127,642.31
  4. Step 4: Simplify right side
    447,496.52x = 85,666,149,681.44
  5. Step 5: Solve for x
    x = 85,666,149,681.44/447,496.52
  6. Step 6: Final answer
    x = 191,434.23

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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.