Home / 727,364.52-1,003,691.10-405,104.58

Finding the Fourth Proportional to 727,364.52, 1,003,691.10 and 405,104.58

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Solution

The fourth proportional to 727,364.52, 1,003,691.10 and 405,104.58 is: 559,004.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,364.52 : 1,003,691.10 = 405,104.58 : x
  2. Step 2: Convert to fraction form
    727,364.52/1,003,691.10 = 405,104.58/x
  3. Step 3: Cross multiply
    727,364.52x = 1,003,691.10 × 405,104.58
  4. Step 4: Simplify right side
    727,364.52x = 406,599,861,515.24
  5. Step 5: Solve for x
    x = 406,599,861,515.24/727,364.52
  6. Step 6: Final answer
    x = 559,004.25

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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.