Home / 727,840.46-1,004,406.44-405,543.62

Finding the Fourth Proportional to 727,840.46, 1,004,406.44 and 405,543.62

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Solution

The fourth proportional to 727,840.46, 1,004,406.44 and 405,543.62 is: 559,642.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,840.46 : 1,004,406.44 = 405,543.62 : x
  2. Step 2: Convert to fraction form
    727,840.46/1,004,406.44 = 405,543.62/x
  3. Step 3: Cross multiply
    727,840.46x = 1,004,406.44 × 405,543.62
  4. Step 4: Simplify right side
    727,840.46x = 407,330,616,579.16
  5. Step 5: Solve for x
    x = 407,330,616,579.16/727,840.46
  6. Step 6: Final answer
    x = 559,642.73

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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.