Home / 727,361.50-1,003,686.96-405,101.58

Finding the Fourth Proportional to 727,361.50, 1,003,686.96 and 405,101.58

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Solution

The fourth proportional to 727,361.50, 1,003,686.96 and 405,101.58 is: 559,000.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,361.50 : 1,003,686.96 = 405,101.58 : x
  2. Step 2: Convert to fraction form
    727,361.50/1,003,686.96 = 405,101.58/x
  3. Step 3: Cross multiply
    727,361.50x = 1,003,686.96 × 405,101.58
  4. Step 4: Simplify right side
    727,361.50x = 406,595,173,321.40
  5. Step 5: Solve for x
    x = 406,595,173,321.40/727,361.50
  6. Step 6: Final answer
    x = 559,000.13

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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.