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Finding the Fourth Proportional to 635,338.80, 952,133.40 and 421,498.80

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Solution

The fourth proportional to 635,338.80, 952,133.40 and 421,498.80 is: 631,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,338.80 : 952,133.40 = 421,498.80 : x
  2. Step 2: Convert to fraction form
    635,338.80/952,133.40 = 421,498.80/x
  3. Step 3: Cross multiply
    635,338.80x = 952,133.40 × 421,498.80
  4. Step 4: Simplify right side
    635,338.80x = 401,323,085,539.92
  5. Step 5: Solve for x
    x = 401,323,085,539.92/635,338.80
  6. Step 6: Final answer
    x = 631,667.84

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1.5x scale

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.