Home / 727,607.52-1,004,128.63-405,317.53

Finding the Fourth Proportional to 727,607.52, 1,004,128.63 and 405,317.53

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Solution

The fourth proportional to 727,607.52, 1,004,128.63 and 405,317.53 is: 559,355.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,607.52 : 1,004,128.63 = 405,317.53 : x
  2. Step 2: Convert to fraction form
    727,607.52/1,004,128.63 = 405,317.53/x
  3. Step 3: Cross multiply
    727,607.52x = 1,004,128.63 × 405,317.53
  4. Step 4: Simplify right side
    727,607.52x = 406,990,936,113.88
  5. Step 5: Solve for x
    x = 406,990,936,113.88/727,607.52
  6. Step 6: Final answer
    x = 559,355.04

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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.