Home / 727,409.38-1,003,825.24-421,663.10

Finding the Fourth Proportional to 727,409.38, 1,003,825.24 and 421,663.10

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Solution

The fourth proportional to 727,409.38, 1,003,825.24 and 421,663.10 is: 581,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,409.38 : 1,003,825.24 = 421,663.10 : x
  2. Step 2: Convert to fraction form
    727,409.38/1,003,825.24 = 421,663.10/x
  3. Step 3: Cross multiply
    727,409.38x = 1,003,825.24 × 421,663.10
  4. Step 4: Simplify right side
    727,409.38x = 423,276,062,556.64
  5. Step 5: Solve for x
    x = 423,276,062,556.64/727,409.38
  6. Step 6: Final answer
    x = 581,895.25

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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.