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Finding the Fourth Proportional to 635,990.40, 877,663.80 and 364,056.75

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Solution

The fourth proportional to 635,990.40, 877,663.80 and 364,056.75 is: 502,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,990.40 : 877,663.80 = 364,056.75 : x
  2. Step 2: Convert to fraction form
    635,990.40/877,663.80 = 364,056.75/x
  3. Step 3: Cross multiply
    635,990.40x = 877,663.80 × 364,056.75
  4. Step 4: Simplify right side
    635,990.40x = 319,519,430,620.65
  5. Step 5: Solve for x
    x = 319,519,430,620.65/635,990.40
  6. Step 6: Final answer
    x = 502,396.63

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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.