Home / 727,415.46-1,003,864.35-405,125.55

Finding the Fourth Proportional to 727,415.46, 1,003,864.35 and 405,125.55

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Solution

The fourth proportional to 727,415.46, 1,003,864.35 and 405,125.55 is: 559,090.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,415.46 : 1,003,864.35 = 405,125.55 : x
  2. Step 2: Convert to fraction form
    727,415.46/1,003,864.35 = 405,125.55/x
  3. Step 3: Cross multiply
    727,415.46x = 1,003,864.35 × 405,125.55
  4. Step 4: Simplify right side
    727,415.46x = 406,691,100,683.63
  5. Step 5: Solve for x
    x = 406,691,100,683.63/727,415.46
  6. Step 6: Final answer
    x = 559,090.54

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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.