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Finding the Fourth Proportional to 665,827.50, 918,845.19 and 364,021.50

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Solution

The fourth proportional to 665,827.50, 918,845.19 and 364,021.50 is: 502,351.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,827.50 : 918,845.19 = 364,021.50 : x
  2. Step 2: Convert to fraction form
    665,827.50/918,845.19 = 364,021.50/x
  3. Step 3: Cross multiply
    665,827.50x = 918,845.19 × 364,021.50
  4. Step 4: Simplify right side
    665,827.50x = 334,479,404,331.59
  5. Step 5: Solve for x
    x = 334,479,404,331.59/665,827.50
  6. Step 6: Final answer
    x = 502,351.44

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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.