Home / 727,827.50-1,004,388.54-405,530.66

Finding the Fourth Proportional to 727,827.50, 1,004,388.54 and 405,530.66

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Solution

The fourth proportional to 727,827.50, 1,004,388.54 and 405,530.66 is: 559,624.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,827.50 : 1,004,388.54 = 405,530.66 : x
  2. Step 2: Convert to fraction form
    727,827.50/1,004,388.54 = 405,530.66/x
  3. Step 3: Cross multiply
    727,827.50x = 1,004,388.54 × 405,530.66
  4. Step 4: Simplify right side
    727,827.50x = 407,310,347,522.64
  5. Step 5: Solve for x
    x = 407,310,347,522.64/727,827.50
  6. Step 6: Final answer
    x = 559,624.84

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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.