Home / 457,918.92-631,918.70-253,936.94

Finding the Fourth Proportional to 457,918.92, 631,918.70 and 253,936.94

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Solution

The fourth proportional to 457,918.92, 631,918.70 and 253,936.94 is: 350,427.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,918.92 : 631,918.70 = 253,936.94 : x
  2. Step 2: Convert to fraction form
    457,918.92/631,918.70 = 253,936.94/x
  3. Step 3: Cross multiply
    457,918.92x = 631,918.70 × 253,936.94
  4. Step 4: Simplify right side
    457,918.92x = 160,467,501,006.78
  5. Step 5: Solve for x
    x = 160,467,501,006.78/457,918.92
  6. Step 6: Final answer
    x = 350,427.76

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1.5x scale

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.