Home / 727,484.31-1,003,902.32-405,177.01

Finding the Fourth Proportional to 727,484.31, 1,003,902.32 and 405,177.01

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Solution

The fourth proportional to 727,484.31, 1,003,902.32 and 405,177.01 is: 559,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,484.31 : 1,003,902.32 = 405,177.01 : x
  2. Step 2: Convert to fraction form
    727,484.31/1,003,902.32 = 405,177.01/x
  3. Step 3: Cross multiply
    727,484.31x = 1,003,902.32 × 405,177.01
  4. Step 4: Simplify right side
    727,484.31x = 406,758,138,852.85
  5. Step 5: Solve for x
    x = 406,758,138,852.85/727,484.31
  6. Step 6: Final answer
    x = 559,129.78

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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.