Home / 727,090.04-1,003,124.58-420,999.37

Finding the Fourth Proportional to 727,090.04, 1,003,124.58 and 420,999.37

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Solution

The fourth proportional to 727,090.04, 1,003,124.58 and 420,999.37 is: 580,828.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,090.04 : 1,003,124.58 = 420,999.37 : x
  2. Step 2: Convert to fraction form
    727,090.04/1,003,124.58 = 420,999.37/x
  3. Step 3: Cross multiply
    727,090.04x = 1,003,124.58 × 420,999.37
  4. Step 4: Simplify right side
    727,090.04x = 422,314,816,211.52
  5. Step 5: Solve for x
    x = 422,314,816,211.52/727,090.04
  6. Step 6: Final answer
    x = 580,828.77

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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.