Home / 443,784.69-665,844.80-266,415.35

Finding the Fourth Proportional to 443,784.69, 665,844.80 and 266,415.35

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Solution

The fourth proportional to 443,784.69, 665,844.80 and 266,415.35 is: 399,723.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,784.69 : 665,844.80 = 266,415.35 : x
  2. Step 2: Convert to fraction form
    443,784.69/665,844.80 = 266,415.35/x
  3. Step 3: Cross multiply
    443,784.69x = 665,844.80 × 266,415.35
  4. Step 4: Simplify right side
    443,784.69x = 177,391,270,776.38
  5. Step 5: Solve for x
    x = 177,391,270,776.38/443,784.69
  6. Step 6: Final answer
    x = 399,723.73

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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.