Home / 727,664.13-1,004,132.77-405,316.73

Finding the Fourth Proportional to 727,664.13, 1,004,132.77 and 405,316.73

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Solution

The fourth proportional to 727,664.13, 1,004,132.77 and 405,316.73 is: 559,312.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,664.13 : 1,004,132.77 = 405,316.73 : x
  2. Step 2: Convert to fraction form
    727,664.13/1,004,132.77 = 405,316.73/x
  3. Step 3: Cross multiply
    727,664.13x = 1,004,132.77 × 405,316.73
  4. Step 4: Simplify right side
    727,664.13x = 406,991,812,319.28
  5. Step 5: Solve for x
    x = 406,991,812,319.28/727,664.13
  6. Step 6: Final answer
    x = 559,312.73

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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.